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    FAQ/Walkthrough by RainingMetal

    Version: 1.26 | Updated: 03/27/11 | Printable Version | Search Guide | Bookmark Guide

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    Left 4 Dead FAQ/Walkthrough
    For the PC
    By Raining Metal
    Version 1.26
    
    ===================
    >Table of Contents<
    ===================
    
    1.0 Introduction
    1.1 Version History
    
    2.00 Basics
    2.01 Controls
    2.02 Heads Up Display
    2.03 The Survivors
    2.04 The Infected
    2.05 The Director
    2.06 Weapons & Items
    2.07 Difficulty
    2.08 Voice Commands
    2.09 Game Modes
    2.10 The Lobby
    2.11 The Environment
    2.12 Achievements
    2.13 Glossary
    2.14 Types of Players
    
    3.00 Campaign/Survival Walkthrough
    3.10 No Mercy
    3.11 The Apartments
    3.12 The Subway
    3.13 The Sewers
    3.14 The Hospital
    3.15 The Rooftop Finale
    -------------------------------------------------------------------------------
    3.20 Crash Course
    3.21 The Alleys
    3.22 The Truck Depot Finale
    -------------------------------------------------------------------------------
    3.30 Death Toll
    3.31 The Turnpike 
    3.32 The Drains
    3.33 The Church
    3.34 The Town
    3.35 The Boathouse Finale
    -------------------------------------------------------------------------------
    3.40 Dead Air
    3.41 The Greenhouse
    3.42 The Crane
    3.43 The Construction Site
    3.44 The Terminal
    3.45 The Runway Finale
    -------------------------------------------------------------------------------
    3.50 Blood Harvest
    3.51 The Woods
    3.52 The Tunnel
    3.53 The Bridge
    3.54 The Train Station
    3.55 The Farmhouse Finale
    -------------------------------------------------------------------------------
    3.60 The Sacrifice
    3.61 The Docks
    3.62 The Barge
    3.63 Port Finale
    -------------------------------------------------------------------------------
    3.70 The Last Stand
    3.71 The Lighthouse
    
    4.00 More Tips
    4.01 General Tips
    4.02 Working Together
    4.03 Versus Tips
    4.04 Against Infected
    4.05 As Infected
    4.06 Supply & Demand
    4.07 Environmental Tips
    4.08 Survival Tips
    4.09 Achievement Tips
    4.10 Custom Campaigns & Maps
    
    5.1 And The Rest!
    5.1 F.A.Q
    5.2 Email Guide
    5.3 Website List
    5.4 Credits
    5.5 Legal Disclaimer
    
    To search for the section wanted in this Guide, Highlight the Number beside the
    subject (Such as 3.3) and press Ctrl + C, then F, and then V. This will
    activate a finding system to look for the text put in (in this case, a number
    with a decimal) and simply click ďNextĒ.
    
    ==================
    1.0 >Introduction<
    ==================
    Salutations readers! RainingMetal is here to help out any Survivors caught
    amongst the Infected in need! Since GameFAQs apparently did not have an overall
    strategy guide for the PC version of Left 4 Dead, I decided to make one myself.
    Another reason why I made this guide is the fact that the PC verison of Left 4
    Dead didn't come with a complete manual (much like most of Valve's other
    games).
    
    ---------------------
    1.1 >Version History<
    ---------------------
    
    Version 1.26
    
    Added Survival tips to The Sacrifice's walkthrough.
    
    -------------------------------------------------------------------------------
    
    Version 1.25
    
    Added The Sacrifice's content.
    
    -------------------------------------------------------------------------------
    
    Version 1.20
    
    Added more Custom Campaigns.
    
    -------------------------------------------------------------------------------
    
    Version 1.19
    
    Added Special Infected weaknesses.
    
    -------------------------------------------------------------------------------
    
    Version 1.18
    
    Francis hates updates.
    
    -------------------------------------------------------------------------------
    
    Version 1.17
    
    Added information on custom sprays.
    
    -------------------------------------------------------------------------------
    
    Version 1.16
    
    Added new ASCII art to the title. Added the Achievement tips.
    
    -------------------------------------------------------------------------------
    
    Version 1.15
    
    Added the One-Way Passage article in the Environment section, and added notices
    regarding One-Way Passages and Crescendo Events throughout the walkthrough.
    
    -------------------------------------------------------------------------------
    
    Version 1.12
    
    Added the Types of Players list, and added a few tweaks.
    
    -------------------------------------------------------------------------------
    
    Version 1.11
    
    Made some minor adjustments in preparation for a template for a Left 4 Dead 2
    guide (that's right! I preordered!).
    
    -------------------------------------------------------------------------------
    
    Version 1.10
    
    Completed the Crash Course walkthrough!
    
    -------------------------------------------------------------------------------
    
    Version 1.08
    
    Added the Crash Course Campaign sections in the Walkthrough, as well as the new
    Achievements. Walkthrough coming soon...
    
    -------------------------------------------------------------------------------
    
    Version 1.05
    
    Added the Versus Tips section.
    
    -------------------------------------------------------------------------------
    
    Version 1.04
    
    Adjusted various bits of the guide, and added the Custom Campaigns & Maps
    section.
    
    -------------------------------------------------------------------------------
    
    Version 1.03
    
    Made more tips on the walkthrough, and added more content to the general tips.
    
    -------------------------------------------------------------------------------
    
    Verison 1.02
    
    Made more notes to the Walkthrough (concerning one-way passages and combat
    tips), and added a nice title to the guide.
    
    -------------------------------------------------------------------------------
    
    Verison 1.01
    
    Added the Achievements list, and made a few adjustments to the Tank tips.
    There's bound to be a lot of improvements here!
    
    -------------------------------------------------------------------------------
    
    Version 1.00
    
    Initial Release. Nothing special.
    
    =============
    2.00 >Basics<
    =============
    This section will provide the basics to Left 4 Dead.
    
    ---------------
    2.01 >Controls<
    ---------------
    These are the controls for the PC version of Left 4 Dead. Note that the
    controls can be changed via the options menu.
    
    Both Sides
    Mouse: Look around.
    W: Move Forward.
    A: Move Left.
    S: Move Backward.
    D: Move Right.
    Space Bar: Jump.
    Ctrl: Crouch (hold).
    Shift: Walk (hold).
    C: Voice Chat.
    U: Type Team Only Message.
    Y: Type Public Message.
    T: Spray logo.
    M: Select Team (Versus Mode only).
    H: See Server info.
    Tab: Scoreboard/Status Screen.
    Esc: Main Menu.
    F1: Vote Yes.
    F2: Vote No.
    F5: Screen Capture
    
    Survivor
    Left Click: Fire Weapon/Throw Grenade/Use Item.
    Right Click: Melee Attack/Heal Other/Give to Other.
    Middle Click: Scope.
    1: Select Primary Weapon.
    2: Select Secondary Weapon.
    3: Select Grenade.
    4: Select Pack.
    5: Select Consumable.
    R: Reload.
    E: Use.
    Q: Select previous Item.
    F: Turn on/off Flashlight.
    Z and X: Voice Commands.
    
    Infected
    Left Click: Infected Ability.
    Right Click: Melee Attack/Throw Rock.
    E: Move to Survivor position (spawning mode only).
    
    Screenshots can be found under C:/Program Files/Steam/steamapps/common/
    left 4 dead/left4dead/screenshots.
    
    Custom sprays must be located under C:/Program Files/Steam/steamapps/common/
    left 4 dead2/left4dead2/materials/vgui/logos. They should (but don't have to
    absolutely) also be 256x256 pixels large, and in TGA, JPG, or VTF format.
    
    These controls are for the Xbox Version, if anyone looking for a PC guide
    cares.
    
    Both Sides
    Left Stick: Move.
    Right Stick: Look around.
    A: Jump.
    LB: Crouch.
    RB: 180 degree spin.
    Start: Main Menu/Vote Yes.
    Back: Scoreboard/Status Screen/Vote No.
    
    Survivor:
    RT: Fire Weapon/Throw Grenade/Use Item.
    LT: Shove Attack/Heal Other/Give to Other.
    B: Reload.
    X: Use.
    Y: Select Weapon.
    D-Pad Up: Flashlight.
    D-Pad Left: Select Grenade.
    D-Pad Right: Select Pack.
    D-Pad Down: Select Consumable.
    Click Left Stick: Voice Commands.
    Click Right Stick: Scope.
    
    Infected:
    X: Move to Survivor position (spawning mdoe only).
    RT: Infected Ability.
    LT: Melee Attack/Throw Rock.
    
    -----------------------
    2.02 >Heads Up Display<
    -----------------------
    This is a brief description of the Heads Up Display, which is visible
    throughout the escape of the Survivors.
    
    The following are displayed in the HUD throughout the game (besides the
    givens, such as current Weapon and crosshairs):
    -Direction of where any damage taken came from (red lines appearing in the
    middle of the screen)
    -Occasionally a bit of blood
    -Tutorial Notes (will appear from time to time)
    
    The following are displayed in the HUD for Survivors :
    
    -Player's Current & Temporary Health (bottom-right)
    -Teammates' Current & Temporary Health (bottom-left to bottom)
    -Player's Inventory & Ammunition (right)
    -Teammates' Inventory (next to Teammates' Current & Temporary Health)
    -Who protected/saved who recently (left)
    -What Special Infected was killed recently (left)
    -Time endured (top, Survival only)
    -Record Time/Goal Time (top, Survival only)
    -Special Notes (will appear from time to time)
    
    The following are displayed in the HUD for Infected (the Infected view the
    world in a distorted, coloured vision):
    
    -Player's Current Health (bottom-right)
    -Teammates' Current Health (bottom-left to bottom)
    -Ability status meter (bottom-left)
    -Type of Infected currently playing as (bottom-left)
    -Teammates' status meter (bottom-left to bottom)
    -Recent attacks made by Infected players (left)
    
    All of the Survivors start out with 100 Health points. Should they run out of
    Health points, permanent or temporary, they will become Incapacitated, and will
    need help getting back on their feet. A Survivor that has been brought back up
    will start off with 30 temporary HP. Should they get Incapacitated a second
    time, they will die the next time they run out of Health without having a
    Health Kit applied to them. It is impossible to get back to 100 HP after being
    hit once. When a Survivor's Health drops below 40 HP, their speed will
    decrease. A Survivor clinging onto 1 HP will be VERY slow. If a Survivor is
    killed, they can be brought back in the game usually by being rescued from a
    Closet, or at the end of a round. They will start with 50 HP, a random Tier 1
    Weapon, and a Pistol.
    
    All Survivors can be seen through walls, as they will be shown as a blue
    silhouette. Any Survivor who is under attack by a Special Infected (being
    pounced on, got puked on by a Boomer, got incapacitated, etc.) will have an
    orange outline, or will have an orange silhouette. This also applies to
    Survivors trapped in Rescue Closets.
    
    The Infected can see how heavily damaged each Survivor is, by identifying the
    colour of their outline (Green, Yellow, or Red). They can also see the
    Survivors' silhouettes as well as their fellow special Infected, even if they
    are in spawning mode. Player-controlled Infected have blue auras, while the
    Witch will have a white or red aura, depending on her anger levels.
    
    Before getting into the action, the Infected are able to move all over the map
    freely and quickly, without being seen by the Survivors. They are in spawning
    mode in this state. They can also teleport to the Survivors' position with E if
    they get lost. When they are ready, they can click to spawn for real.
    
    --------------------
    2.03 >The Survivors<
    --------------------
    There are four playable Survivors in Left 4 Dead. Presumably immune, they must
    travel across hazardous lands in order to escape from the calamity that is the
    Infection.
    
    *******
    *Louis*
    *******
    
    Appearance: Black, fairly skinny, bald.
    Attire: White shirt, red tie.
    Preferred Weapons: Submachine Guns, Assault Rifles.
    Subtitle Colour: White.
    Former Occupation: Business Manager.
    Likes: Living normally, plans, monkeys, Pills.
    Dislikes: Anarchy, things not going according to plan, Hunters.
    
    Basically the average joe of the group of four, Louis just wants everything to
    go back to normal. He's fairly optimistic, and he's always willing to help out
    his friends if they're in need. He's also rather scared of people in hoodies,
    especially Hunters.
    
    *********
    *Francis*
    *********
    
    Appearance: Tough, muscular, shaved.
    Attire: Black vest, white T-shirt.
    Preferred Weapons: Shotguns.
    Subtitle Colour: Grey-Blue.
    Former Occupation: Biker.
    Likes: Vests, mittens, steam, lasagna, smurfs, tigers.
    Dislikes: Vans, planes, the woods, elevators, helicopters, sewers, hospitals,
    doctors, lawyers, cops, stairs, small towns, Ayn Rand, trainyards, tunnels,
    water, subways, parades, latest issues, Mondays, Bill, Nick.
    
    At the other end of the spectrum, Francis is a rebellious, brutal pessimist. In
    fact, he pretty much hates everything that isn't vests (or mittens). He treats
    the Infection as the world's biggest barfight, so he's certainly eager to fill
    the zombies full of lead. Sometimes he shows his soft side when he's around
    Zoey, or when he's about to die.
    
    ******
    *Zoey*
    ******
    
    Appearance: Female, young.
    Attire: Red jacket.
    Preferred Weapons: Submachine Guns, Sniper Rifles.
    Subtitle Colour: Red.
    Former Occupation: Student.
    Likes: Movies, pop culture, steam, dragons, Ellis.
    Dislikes: Lies, Smokers, having to kill helicopter pilots.
    
    Zoey is a former student at her university, who spent most of her time watching
    movies. She does have an idea of what to expect when the Infection began to
    spread, although she certainly was surprised at how fast the zombies truly
    were.
    
    ******
    *Bill*
    ******
    
    Appearance: Old, grim, white hair.
    Attire: Green beret, green uniform.
    Preferred Weapons: Shotguns, Assault Rifles.
    Subtitle Colour: Green.
    Former Occupation: Soldier.
    Likes: Surviving, keeping busy, blazes of glory, wolves, Zoey.
    Dislikes: Francis, Vietnam, Crash Course, The Passing, goddamn birds.
    
    Bill is not a happy man. As if the traumatizing experiences in the cold war
    weren't enough, Bill was distressed when he found out there was an Infection
    going around. The good thing news is that all of his army training is about to
    pay off for a second time.
    
    -------------------
    2.04 >The Infected<
    -------------------
    These are the main antagonists of the game: The Infected. Along with the
    predictable and numerous Common Infected, there is a bunch of more mutated and,
    hence, much more dangerous variations. Special Infected often appear throughout
    the levels, and will always try to attack the Survivors on sight. Most of them
    can take down a lonely Survivor without resistance. Boss Infected are even
    rarer than the Special Infected, as they often have the strength to kill off,
    or at least Incapacitate a careless Survivor without much difficulty. Expect a
    Boss Infected to be up ahead when there are few Common Infected around...
    
    **************
    *The Infected*
    **************
    
    Type: Common Infected.
    Appearance: Normal-looking, save for blank eyes and pale skin. Various clothes.
    Abilities: Claw, Climb.
    Health: 30/50/90.
    Anticipate them: When a Panic/Crescendo Event has been triggered, when they
    notice any Survivors, when someone has been vomited on by a Boomer, when the
    Horde chime is heard.
    Sounds Emitted: Generic grunting, generic shouting.
    
    The Common Infected are typical zombie characters. They aren't very strong, but
    in numbers, they are very difficult to get through without any firepower. They
    often attack by simply charging at the Survivors head-on, but sometimes they
    are simply wandering around certain areas of the map. Take advantage of this
    and kill the idle ones with Pistols to conserve ammo. Numerous things attract
    hordes of Infected (known as simply Hordes), such as Car Alarms, noises, and
    the Boomer's Vomit. They do more damage to the front than to the back. All
    Common Infected are capable of slowing down a Survivor on every hit.
    
    ********
    *Hunter*
    ********
    
    Type: Special Infected.
    Appearance: Wears a hoodie, rather normal-looking. Sometimes crawls on all
    fours.
    Abilities: Pounce, Claw.
    Health: 250.
    Anticipate him: When there's a zombie that's jumping far in the sky, when
    people say they hear a Hunter.
    Sounds Emitted: Growling, high-pitched screams (when attacking).
    Death Expulsion: None.
    Most Vulnerable When: Retreating from being shot, crawling, Shoved.
    
    Hunters are extremely dangerous to any lonely Survivor. They jump and pounce on
    their prey, and when they get on top of a Survivor, he will claw the Survivor
    to death until the Hunter is pryed off of the Survivor, the Hunter is killed,
    or the Survivor is killed. Be sure to stick around with a buddy upon locating a
    Hunter!
    
    ********
    *Smoker*
    ********
    
    Type: Special Infected.
    Appearance: Tall, has a rather long tongue. Has green spores surrounding him.
    Wears a green short-sleeved shirt.
    Abilities: Tongue drag, Claw.
    Health: 250.
    Anticipate him: When there are green spores in the distance.
    Sounds Emitted: Coughing, hacking, Smeagol-esque screams (when attacking, AI
    only).
    Death Expulsion: Smoke.
    Most Vulnerable When: Retreating from a failed pull, screaming, Shoved.
    
    The Smoker is the only Infected (save for the Tank) that can attack the
    Survivors from a distance. The Smoker drags his victims towards him until the
    victim is stuck, or the victim is close enough to the Smoker for him to whack
    him or her to death. When trying to stick together, put the Smoker on the top
    of the "Must kill" list. Upon dying, the Smoker leaves behind a green cloud
    that impairs vision and speech for the Survivors when near it. Player-
    controlled Smokers resist screaming when spotting their targets, unlike AI
    Smokers. Victims being constricted by a Smoker can be knocked off, effectively
    saving them. The tongue itself can also be shot.
    
    ********
    *Boomer*
    ********
    
    Type: Special Infected.
    Appearance: Fat. Really fat. Wears an undersized black shirt.
    Abilities: Vomit, Claw.
    Health: 50.
    Anticipate him: When his fat belly is spotted.
    Sounds Emitted: Obese grunts.
    Death Expulsion: Bile.
    Most Vulnerable When: Shoved, recently puked.
    
    One of the first special Infected ever conceived by the guys at Valve, the
    Boomer doesn't have many direct attacks. However, his Vomit attracts the Horde
    when put on a Survivor, so try to stay away from them. When killed, his belly
    explodes, covering any Survivor nearby with Vomit. He doesn't pop when pushed
    away (at least, not for until too many times), so take advantage of this.
    
    ******
    *Tank*
    ******
    
    Type: Boss Infected.
    Appearance: Huge, muscular. Walks on all fours.
    Abilities: Claw, Rock Throw.
    Health: 3000-8000.
    Anticipate him: When the Tank's theme is heard, when there are hardly any
    Common Infected around.
    Sounds Emitted: Deep grunts and snarls. Hulking shouts.
    Death Expulsion: None.
    Most Vulnerable When: Roaring and flexing, throwing a Rock at somewhere else.
    
    The Tank is one of the two Boss Infected, and he's very powerful! Along with
    being able to knock away Survivors with his fists, he can also throw Rocks at
    far away Survivors. The Tank can also knock cars and other similar objects out
    of his way, or towards Survivors. To defeat him, the Survivors must concentrate
    fire on him.
    
    *******
    *Witch*
    *******
    
    Type: Boss Infected.
    Appearance: Female, wears barely any clothing, pale.
    Abilities: Claw.
    Health: 500-1000.
    Anticipate her: When the Witch's theme is heard, when there are hardly any
    Common Infected around, when people tell each other to turn off their lights.
    Sounds Emitted: Cries, growls, shouts, screams.
    Death Expulsion: None.
    Most Vulnerable When: Attacking another Survivor, stunned.
    
    The other Boss Infected. The Witch, unlike most other Infected, is only
    aggressive when she is startled. She is initially set at one spot, crying. The
    best way to get past a Witch is to sneak past her. The Witch will get startled
    by Flashlights, people who get too close to her, or by being shot or lit on
    fire. If anyone gets too close to her, she'll get more and more angry (listen
    to her voice to hear how angry she is). If she's left alone long enough, she'll
    begin to cry again.
    
    If the Witch is startled, she'll go after whoever startled her (this will be
    notified on the HUD immediately). If the Witch manages to reach her startler,
    the startler will get Incapacitated. Upon startling the Witch (hopefully not on
    purpose), shoot her!
    
    -------------------
    2.05 >The Director<
    -------------------
    The Director is a special sort of AI that determines where certain items appear
    throughout the levels (most importantly, Health Kits and Pain Pills). The
    Director is known to be easy-going on Easy, but ruthless and sadistic on
    Expert (although its mood can depend on the team's performance too). The
    Director also coordinates when the Horde attacks, depending on how the
    Survivors are doing. The Director also controls the music in the game, and 
    determines where Special Infected spawn in Campaign mode.
    
    ----------------------
    2.06 >Weapons & Items<
    ----------------------
    These are the Weapons and items that will be needed in order to escape the
    dangers of the Infected. Included amongst all of these are the Flashlight and
    Melee attacks. The Flashlight can be used to see in the dark, and the Melee
    attack can be used to shove away Infected.
    
    Recoil affects every weapon, and firing consistently will increase the amount
    of recoil, thus decreasing the accuracy of the weapon. Moving around also
    increases recoil. To decrease recoil, crouch and stay still while firing in
    controlled bursts. Getting hit also affects accuracy.
    
    When reloading, the clip goes down to 0, but the capacity will increase by how
    many bullets there were in the previous clip. In short, this does not waste
    away any clips, but when reloading, the Survivor must finish reloading in order
    to fire again.
    
    ********************
    *Uzi Submachine Gun*
    ********************
    
    Clip Size: 50.
    Carrying Capacity: 480.
    Power per shot: 20.
    Rate of Fire: Automatic.
    Range: Medium.
    Recoil: Medium.
    Reload Speed: Medium.
    Type: Primary Weapon (1st Tier).
    Best used on: Hunters, Smokers, Boomers.
    
    The Submachine Gun is a very balanced Weapon. It's pratically useful against
    most Infected, and is effective at any range. It runs out of ammo quickly
    though.
    
    *****************
    *M3 Pump Shotgun*
    *****************
    
    Clip Size: 8.
    Carrying Capacity: 128.
    Power per shot: 24-240.
    Rate of Fire: Pump.
    Range: Short.
    Recoil: Low.
    Reload Speed: Fast to Slow.
    Type: Primary Weapon (1st Tier).
    Best used on: Hunters, Boomers, Witches.
    
    The Pump Shotgun, much like all other Shotguns in various games, is deadly up
    close, but weak at long range. The Pump Shotgun is effective at slaying Hordes
    up close, and can also be used to kill off Hunters after knocking them back.
    Shotguns, including the Pump Shotgun, are capable of killing the Witch in one
    hit (see Tips Against Infected). When reloading an entire clip, the Shotgun
    must pump before it can fire again. Be sure not to have an empty clip!
    
    *******************
    *M16 Assault Rifle*
    *******************
    
    Clip Size: 50.
    Carrying Capacity: 360.
    Power per shot: 33.
    Rate of Fire: Automatic.
    Range: Medium.
    Recoil: Medium.
    Reload Speed: Medium.
    Type: Primary Weapon (2nd Tier).
    Best used on: Hunters, Smokers, Boomers.
    
    The Assault Rifle a straight upgrade from the Submachine Gun in almost every
    category (except Ammunition). A few shots from the Assault Rifle is enough to
    kill off a single Common Infected. It's very effective against Hunters,
    Smokers, and Boomers. Just be sure not to run out of ammo!
    
    *****************
    *M1 Auto Shotgun*
    *****************
    
    Clip Size: 10.
    Carrying Capacity: 128.
    Power per shot: 228.
    Rate of Fire: Semi.
    Range: Short.
    Recoil: Medium.
    Reload Speed: Fast to Slow.
    Type: Primary Weapon (2nd Tier).
    Best used on: Hunters, Boomers, Witches, Tanks.
    
    Like the Assault Rifle, the Auto Shotgun is a straight upgrade from the Pump
    Shotgun. Not only does it have two extra shells in its clip, but it can fire
    must faster! It's especially deadly against Tanks. Shotguns, including the
    Auto Shotgun, are capable of killing the Witch in one hit (see Tips Against
    Infected). When reloading an entire clip, the Shotgun must pump before it can
    fire again. Be sure not to have an empty clip!
    
    *********************
    *Ruger Hunting Rifle*
    *********************
    
    Clip Size: 15.
    Carrying Capacity: 150.
    Power per shot: 90.
    Rate of Fire: Semi.
    Range: Long.
    Recoil: High.
    Reload Speed: Slow.
    Type: Primary Weapon (2nd Tier).
    Best used on: Smokers, Boomers, Tanks.
    
    The Hunting Rifle is a powerful sniper rifle, making it very dangerous against
    Smokers and Tanks (in fact, it's good against all special Infected). It's also
    good for getting headshots. Contrary to popular belief, it's not capable of
    killing Witches in one hit (but it does good damage against the Witch
    nonetheless). The Hunting Rifle is extremely inaccurate when on the move, but
    any shot fired when standing still is a guaranteed hit. It is also capable of
    killing Common Infected in a single hit. Its bullets can also penetrate through
    multiple Common Infected.
    
    *************
    *1911 Pistol*
    *************
    
    Clip Size: 15/30.
    Carrying Capacity: Infinite.
    Power per shot: 35.
    Rate of Fire: Semi.
    Range: Medium.
    Recoil: Low.
    Reload Speed: Fast/Medium.
    Type: Secondary Weapon.
    Best used on: Various.
    
    The Pistol is the typical Sidearm for the Survivor. Regardless of what primary
    Weapon the Survivor is carrying, the Pistol always has its uses. For the
    rifleman, the Pistol can be used to conserve ammo. For the shotgunner, it's
    one's tool for long-range attacks. And it's the sniper's best friend for
    fighting up close and personal (as well as on the move). The Pistol never runs
    out of ammo, and, if another Pistol is found, this Weapon can be dual-wielded.
    Incapacitated Survivors will always use this weapon.
    
    ***********
    *Pipe Bomb*
    ***********
    
    Explosion Type: Explosive.
    Type: Grenade.
    Best used on: Hordes.
    
    Having trouble with meddling zombies? The Pipe Bomb is the solution! Throw a
    Pipe Bomb at a vacant location, and the stupid zombies will be attracted to its
    pretty light! Then get ready to witness a spectacular explosion of satisfaction
    and gore! Disclaimer: The Pipe Bomb does not attract Special Infected, and the
    makers of Pipe Bombs do not claim responsibility for this quirk.
    
    ******************
    *Molotov Cocktail*
    ******************
    
    Explosion Type: Fire.
    Type: Grenade.
    Best used on: Boss Infected, Choke Points.
    
    The Molotov Grenade instantly explodes when the bottle hits something, so try
    to throw it at something hostile. It's very effective against the Tanks (it
    makes killing Tanks easier!), and it's also useful for slowing down a Witch,
    should the need to get her out of the way arise (without Cr0wning material of
    course!). Certain choke points can also be covered with a wall of fire,
    covering a flank that Common Infected will most likely use. Try not to light a
    Hunter on fire though, searing hands can hurt! The fire caused by the Molotov
    can also damage Survivors as well, so take care when using these cocktails!
    
    ************
    *Health Kit*
    ************
    
    Type: Pack.
    Left Click to: Heal self.
    Right Click to: Heal a teammate.
    
    The Health Kit is capable of healing Survivors. It takes five seconds to heal,
    so use it when there are no hostile zombies around. The Health Kit restores 80%
    of one's lost health (or more specifically, up to at least 80% of their 100 hit
    points), so use it wisely.
    
    ************
    *Pain Pills*
    ************
    
    Type: Consumable.
    Left Click to: Consume Pills.
    Right Click to: Give Pills to a teammate.
    
    Pain Pills give a Survivor temporary pain relief (which is 50 temporary Health
    points in gamer talk). The temporary health diminishes overtime, so it's best
    to use it in the middle of a fight (yes, it's quick and easy to swallow these
    Pills). Pills can be donated to another Survivor to help them out, or when
    there's spare Pills in sight.
    
    -----------------
    2.07 >Difficulty<
    -----------------
    Left 4 Dead has 4 levels of Difficulty; Easy, Normal, Advanced, and Expert.
    
    Notable Easy Notes:
    -The Tank has 3000 health points. He does 24 damage per hit.
    -The Witch has 500 health points. She can be startled in 8 seconds.
    -Common Infected usually deal 1 damage per hit.
    -Friendly Fire does not inflict damage on teammates (except fire and
    explosions).
    -Health Kits and Pain Pills are common and easy to find.
    -This difficulty is an easy (and cheap) way of earning most Achievements.
    
    Notable Normal Notes:
    -The Tank has 4000 health points. He does 24 damage per hit.
    -The Witch has 1000 health points. She can be startled in 5 seconds.
    -Common Infected usually deal 2 damage per hit.
    -Friendly Fire inflicts 10% damage on teammates.
    -Health Kits and Pain Pills are often hidden in secret areas (outside of the
    Safe Zones). Health Kits usually spawn when the Survivors are on their last
    legs.
    -All Normal notes apply to Versus as well.
    
    Notable Advanced Notes:
    -The Tank has 6000 health points. He does 33 damage per hit.
    -The Witch has 1000 health points. She can be startled in 5 seconds.
    -Common Infected usually deal 5 damage per hit.
    -Friendly Fire inflicts 50% damage on teammates.
    -Health Kits and Pain Pills are scarce.
    
    Notable Expert Notes:
    -The Tank has 8000 health points. He does 100 (!) damage per hit.
    -The Witch has 1000 health points, and can kill a Survivor instantly. She can
    be startled in 4 seconds.
    -Common Infected usually deal 20 damage per hit.
    -Boomers can vomit much farther!
    -Friendly Fire inflicts 100% damage on teammates.
    -Health Kits are never found outside of the Safe Zones.
    -Pain Pills are fairly common.
    -The Infected will react much more quickly.
    
    ---------------------
    2.08 >Voice Commands<
    ---------------------
    There are two menus for Voice Commands. There's one for Orders (Z) and one for
    Replies (X). To use the menu, hold the Voice Command key and then point at a
    quote on the menu with the mouse. Release the key to speak. To cancel a Voice
    Command, right-click.
    
    Orders Menu:
    Centre: "Look!"
    North: "Let's Go!"
    Northeast: "You take the lead"
    East: "Hurry!"
    Southeast: "Nice Job!"
    South: "Wait here!"
    Southwest: "Clear!"
    West: "Cover Me!"
    NorthWest: "I'm with you!"
    
    Replies:
    Centre: "Ready?"
    North: "Laugh"
    Northeast: "Be Careful"
    East: "Negative"
    Southeast: "No"
    South: "Sorry"
    Southwest: "Yes"
    West: "Hurrah!"
    NorthWest: "Thank you"
    
    Characters will also say various other things when certain actions occur. Some
    of them are scripted in the Campaigns.
    
    -----------------
    2.09 >Game Modes<
    -----------------
    There are a number of game modes available. All of them, however, contain the
    slaughter of zombies, and the goal of making it out alive.
    
    Co-op Campaign/Single Player:
    In this mode, the four Survivors must make it through the Campaign in order to
    escape from certain calamity. Each level is divided by a Safe House, which is
    the area the Survivors must travel to in each level. At the end of the
    Campaign, the Survivors must hold out until rescue arrives. Single Player is a
    lot like the regular Campaign, except that nobody else can join the game.
    
    Versus:
    This is similar to the Campaign mode, but four additional players can take
    control of various Special Infected. There are two teams of four, and each team
    must make more points than their opponents to win the game. Teams swap roles of
    being the Survivors and Infected, and the winning team in each round gets to
    play as the Survivors first. Points are determined through how long each team
    took to complete the level (if they did at all), how far they got if they
    didn't, and how much Health and Health Kits they had left. There are also
    various level changes.
    
    Survival:
    Survival is another game mode where the Survivors must hold out as long as they
    can to achieve their own records on the maps. This mode requires proper
    planning and decisive decisions (or in some cases, glitches). Bronze Medals are
    awarded to those who last longer than 4 minutes, Silver Medals are given to
    anyone who participates in 7 minute escapades, and only the best of the best
    will earn the Gold Medal for enduring 10 minutes!
    
    ----------------
    2.10 >The Lobby<
    ----------------
    Upon starting a game, players will be sent to a Lobby. Campaign and Survival
    Lobbies can carry up to four players, while Versus Lobbies can have a maximum
    of eight.
    
    Lobby Options:
    -Game Options: The Lobby Leader can change the settings of the game, including
    Difficulty, Campaign, Level, and Server Type.
    -Character Selection: Anyone can select any of the four Survivors to play as,
    although any characters already picked by players cannot be selected.
    -Invite Friends: Anyone can invite their Friends over to play on any server if
    there's room.
    -Permissions: Want to play with only Friends? The Lobby Leader can make it so
    that only Friends can join the game.
    
    The Lobby Leader can also kick a player in the lobby.
    
    Players can also vote in the middle of the game. Votes types consist of
    Campaign changes, player kicking, and restarting the game if something goes 
    wrong.
    
    There's three types of Servers: Best Available Dedicated, Official Dedicated,
    and Local. Despite its title, Best Available is usually NOT the best choice for
    Server Types, as they tend to lag a lot. Official Dedicated are usually the
    best ones. Both of these connect to public servers, where the latency for all
    players tend to remain the same. Local Servers are hosted by the Lobby Leader
    and is always good in terms of latency for the Leader (but for the others, it
    may vary).
    
    ----------------------
    2.11 >The Environment<
    ----------------------
    Along with the various Weapons the Survivors will carry, there are several
    other objects and items they must take note of:
    
    **************
    *Propane Tank*
    **************
    
    Type: Explosive Can.
    
    The Propane Tank can be carried around with a Survivor, but they must drop it
    if they want to use their Weapons. If a Propane Tank is shot, it will explode
    instantly. Try using these as traps during Crescendo Events and Finales (I
    guess Hank Hill really did have a good reason to respect Propane). The Propane
    Tank is white and round.
    
    *********
    *Gas Can*
    *********
    
    Type: Explosive Can.
    
    The Gas Can can also be carried around. However, it needs to be dropped in
    order to use any regular items. Gas Cans explode in a firey blaze when shot,
    much like a Molotov. The Gas Can is a red gasoline bottle.
    
    *************
    *Oxygen Tank*
    *************
    
    Type: Explosive Can.
    
    Rarer than the Propane Tank or Propane Tank, the Oxygen Tank explodes when
    shot. It takes a few seconds for it to explode (not unlike a fuse), so get away
    from it when it's about to blow! The Oxygen Tank is thin and green.
    
    *********
    *Minigun*
    *********
    
    Type: Environmental Object.
    
    The Minigun is a lethal Weapon, but is practically glued onto the floor. It
    cannot turn a full 360 degrees, but the firepower is worth all this trouble. Be
    sure to have a friend for cover, especially when there's a Hunter or Smoker
    around! The Minigun takes a second to wind up, so keep it spinning when
    anticipating an attack.
    
    *************
    *Machine Gun*
    *************
    
    Type: Environmental Object.
    
    The Machine Gun takes the role of the Minigun in the south. It is insanely
    deadly against Common Infected, so long as they are within range. Try not to
    let it overheat! The only Machine Gun in this game is located on the Rayford
    Bridge...
    
    ************
    *Ammo Cache*
    ************
    
    Type: Environmental Object.
    
    Ammo Caches are very important, as it fills up ammunition levels completely.
    Don't be afraid to visit them multiple times. Ammo Caches come in two forms;
    Ammo Dumps and Ammo Cans. Simply press the action key while looking at it to
    use it.
    
    *******
    *Doors*
    *******
    
    Type: Environmental Object.
    
    Doors are pretty much self explanatory. However, the Infected will not open
    doors, and will instead claw their way at it. Be sure to close any Doors once
    everyone's passed through it to slow down the Infected. Tanks and Witches can
    break through most doors easily. Some doors lead to dead ends. These dead ends
    aren't entirely pointless though, as they may have supplies or extra Infected
    in them.
    
    ********
    *Ladder*
    ********
    
    Type: Environmental Object.
    
    Ladders frequently appear throughout various levels. When climbing them,
    Survivors nor Infected can attack or reload until they reach either end of the
    ladder, or jump off. There are certain ladder-esque objects that only the
    Infected can climb (they are indicated as paths with hand icons printed on
    them). If a Survivor is reloading, and then goes onto a ladder, he/she will
    have to start reloading all over again after dismounting. People are completely
    vulnerable when climbing.
    
    *******************
    *First Aid Station*
    *******************
    
    Type: Environmental Object.
    
    First Aid Stations are nailed to the wall, and are red and have the words
    "First Aid" written on them. Obvious statements aside, they usually carry
    Pills, or in rarer and far luckier circumstances, Health Kits. Know where these
    gems are: they can save lives! Ambulances also serve the same purpose.
    
    ******
    *Cars*
    ******
    
    Type: Environmental Object.
    
    Cars are usually harmless, unless they have flashing lights inside (which means
    that they will alert the Horde if touched or shot at), or if a Tank's around
    (which means the Tank can easily throw them at the Survivors). In general, it's
    not usually safe to stand around most Cars. Trucks and Vans, however, are
    usually good vantage points. Dumpsters, Forklifts, and other large objects can
    also be thrown by Tanks.
    
    ******************
    *Explosive Barrel*
    ******************
    
    Type: Environmental Object.
    
    A stationary hybrid of the Propane and Gas Tanks. Shooting this volatile
    cylinder results in an enormous explosion, followed by a blaze of fire.
    
    **********************
    *Safe House/Safe Room*
    **********************
    
    Type: Zone.
    
    The Safe House is a sanctuary filled with Supplies (such as Medkits and Ammo
    Caches). The Safe House also hosts a metal red door (known as a Safe House
    Door). All types of Infected (except for Tanks) cannot pass a closed Safe House
    Door. When leaving a Safe House, be sure that everyone has a Medkit (or all the
    Medkits in the Safe House are taken). There are signs throughout the level that
    point to the direction of the Safe House (they look like houses with a cross in
    it). The level will only end once the Safe House's door is closed and no
    Infected have made it into the Safe Room (if they have, kill them).
    
    ********
    *Closet*
    ********
    
    Type: Zone.
    
    Closets are those little rooms to the sides of the main path of the level. They
    often contain various supplies, like Pills or Grenades. More importantly, if a
    Survivor has been killed in battle, they can be brought back into the game if
    another Survivor opens the door of the Closet they are trapped in. During Panic
    Events, Infected can also appear inside them, so be sure to close the Doors of
    these Closets whenever possible!
    
    *****************
    *One-Way Passage*
    *****************
    
    Type: Zone.
    
    One-Way Passages are passages that players cannot go back through. Before going
    through a One-Way Passage, be sure to collect any supplies on this side of the
    Passage before crossing to the next. Also, make sure everyone passes through
    safely; the Infected love to take advantage of any Survivors that fall behind
    when the rest of them already crossed the One-Way Passage! Survivors and
    Infected MUST take note of One-Way Passages.
    
    *************
    *Panic Event*
    *************
    
    Type: Avoidable Horde-drawing event.
    
    Panic Events attract the horde, usually at the worst times. Panic Events must
    be avoided at all costs, so try not to get vomited on by a Boomer, touch a
    flashing Car, or go through Metal Detectors! Panic Events caused by too much
    dawdling will have its unique chime before the action starts.
    
    *****************
    *Crescendo Event*
    *****************
    
    Type: Unavoidable Horde-drawing event.
    
    Crescendo Events also anger the Horde, but they must often be activated to get
    through the level. A notice will always pop up when a Crescendo Event's nearby,
    so be prepared for some fighting!
    
    ********
    *Finale*
    ********
    
    Type: Unavoidable Horde-drawing event.
    
    The Finale is always located at the end of the Campaign. There's always a Radio
    of some sort there. Talking to the Radio will have the vehicle driver
    encouraging the Survivors to prepare, and talking to the Radio again will have
    the vehicle driver come to the rescue. Be sure not to talk to the Radio twice
    until everyone's prepared! Finales consist of four waves. The first containing
    a Horde, the second containing a Tank, the third containing even more zombies
    than the first Horde, and a second Tank! Special Infected will appear in all
    four waves. Once the second Tank is dead, the Survivors can escape, and they
    should do so before they are overwhelmed by the many Infected, plus a Tank.
    
    -------------------
    2.12 >Achievements<
    -------------------
    This is a list of Achievements obtainable in the game (Survival related
    Achievements can only be aquired in the PC version, along with Outbreak).
    Campaign Completion Achievements can only be obtained on Official Campaigns.
    
    Campaign (Instant):
    -101 Cremations: Set 101 Infected on fire.
    -Back 2 Help: Leave a safe room to save an incapacitated teammate and bring
    them back safely.
    -Barrel Rolled: Kill a Special Infected with an Explosive Barrel. 
    -Blind Luck: You or another Survivor take no damage after being vomited on by a
    Boomer.
    -Brain Salad: Kill 100 Infected with headshots.
    -Burn the Witch: Light a Witch with a Molotov.
    -Clean Kill: Shove a Boomer and then kill him without him splashing on anyone.
    -Cr0wnd: Kill a Witch with a single headshot.
    -Dead Giveaway: Heal a fellow Survivor when your own health is below 10.
    -Dead Stop: Punch a Hunter as he is pouncing.
    -Drag and Drop: Rescue a Survivor from a Smoker's tongue before he/she takes
    damage.
    -Field Medic: Heal 25 Survivors with Health Kits.
    -Ground Cover: Save another Survivor from a Special Infected while on the
    ground.
    -Helping Hand: Revive 50 incapacitated Survivors.
    -Hero Closet: Rescue a Survivor trapped in a closet.
    -Hunter Punter: Shove a Hunter off of a pinned and helpless Survivor.
    -Jump Shot: Headshot a Hunter while he's leaping.
    -Man VS Tank: Single-handedly kill a Tank.
    -My Bodyguard: Protect any Survivor from an attacking Infected 50 times.
    -No One Left Behind: Beat a campaign with all 4 Survivors alive.
    -No Smoking Section: Kill 10 Smokers as they are pulling helpless Survivors.
    -Pharm-Assist: Give pain Pills to 10 Survivors.
    -Pyrotechnician: Blow up 20 Infected in a single explosion.
    -Red Mist: Kill 1000 Infected with the Minigun.
    -Spinal Tap: Kill an Infected with a single blow from behind.
    -Tankbusters: Kill a Tank without it dealing any damage to any Survivors.
    -Tongue Twister: Kill a Smoker who has grabbed you with his tongue.
    -Towering Inferno: Light a Tank on fire with a Molotov.
    -Witch Hunter: Kill a Witch without any Survivors taking damage from her.
    -Zombie Genocidist: Kill 53,595 Infected.
    
    Campaign (Instant, Level Specific):
    -Chaos Generator: Have all three Generators running at once in The Sacrifice
    finale. 
    -Quick Power: Restart the Generator within 30 seconds of it shutting off in
    Crash Course.
    -Tank Stumble: Stun a Tank with an explosion in Crash Course.
    -The Littlest Genocide: Kill 5,359 Infected in Crash Course.
    
    Campaign (Campaign Completion):
    -Mercy Killer: Complete No Mercy.
    -Crash-Proof: Complete Crash Course.
    -Toll Collector: Complete Death Toll.
    -Dead Baron: Complete Dead Air.
    -Grim Reaper: Complete Blood Harvest.
    -Supreme Sacrifice: Be the one who gets sacrificed in The Sacrifice.
    -Akimbo Assassin: Survive an entire campaign without using Primary Weapons or
    the Minigun.
    -Do Not Disturb: Sneak past all Witches in a campaign without disturbing one.
    -Kill Bill: Be the one who gets sacrificed in The Sacrifice as Bill.
    -Nothing Special: Survive a campaign with no Survivors taking damage from
    Special Infected.
    -Safety First: Play an entire campaign with no Survivors taking friendly fire
    damage.
    -Stand Tall: Survive a campaign without being incapacitated.
    -Stomach Upset: All Survivors complete a campaign without being vomited on.
    -Unbreakable: Finish a campaign without ever using a Health Kit on yourself.
    -Untouchables: No Survivors take damage after contacting the rescue vehicle.
    -What are you trying to prove?: Survive all campaigns on Expert.
    -Zombicidal Maniac: Survive any campaign on Expert.
    
    Versus:
    -20 Car Pile-Up: Hit 20 Survivors with cars as a Tank in Crash Course.
    -All 4 Dead: Kill all four Survivors in one life as a Tank.
    -Barf Bagged: Cover four Survivors with Boomer bile at once.
    -Big Drag: Drag a Survivor 100 feet with your tongue as a Smoker.
    -Chain Smoker: Constrict two Survivors in one life as a Smoker.
    -Dead Wreckening: Dole out 5000 total Survivor damage as a Special Infected.
    -Double Jump: Pounce two different Survivors in one life as a Hunter.
    -Jumpin' Jack Smash: Pounce a Survivor for 25 points of damage in Crash Course
    as a Hunter.
    -Lamb 2 Slaughter: As an Infected, incap a Survivor who has entered and left a
    Safe Room.
    -Outbreak: Catch a rare strain of infection from a player-controlled Boomer,
    then pass it on to someone else (PC Only).
    -Sacrifizzle: Incapacitate the Survivor who is sacrificing in The Sacrifice.
    -Slippery Pull: Pull a Survivor covered in Boomer Bile until holding him/her in
    Crash Course.
    -Smash Hit: Win a Versus round in Crash Course.
    -Truck Stop: Incapacitate all Survivors after the Armoured Truck opens in Crash
    Course (all together).
    -Wipefest: Incapacitate three Survivors in 5 seconds in Crash Course (all
    together).
    
    Survival (PC Only):
    -Bronze Mettle: Earn a Bronze medal in Survival mode on any official level.
    -Silver Bullets: Earn a Silver medal in Survival mode on any official level.
    -Violence is Golden: Earn a Gold medal in Survival mode on any official level.
    -Distinguished Survivor: Earn at least a Bronze medal on every official
    Survival level.
    -Heroic Survivor: Earn at least a Silver medal on every official Survival
    level.
    -Legendary Surivvor: Earn a Gold medal on every official Survival level.
    -Last Stand: Complete one round of Survival on The Last Stand.
    
    ---------------
    2.13 >Glossary<
    ---------------
    There are many terms in Left 4 Dead that are quite important, and will
    prominently be mentioned during gameplay or in this guide.
    
    1st Tier Weapons: Submachine Guns and Pump Shotguns.
    
    2nd Tier Weapons: Assault Rifles, Auto Shotguns, and Hunting Rifles.
    
    Akimbo: Akimbo Assassin.
    
    Barf: Boomer Vomit.
    
    Bile: Boomer Vomit.
    
    Boss Infected: The two greater Special Infected; Tank and Witch. They appear
    occasionally throughout the Campaigns, and often appear without the Hordes of
    Infected around.
    
    CI: Common Infected.
    
    Constricted: Being damaged by a Smoker. When a Survivor is pulled close enough
    to the Smoker, or the Survivor cannot be pulled farther any longer, the
    Survivor begins to take damage.
    
    Graffiti: Graffiti, which may provide the Survivors a bit of entertainment on
    the wall.
    
    Grenade: Pipe Bomb or Molotov.
    
    Helpless: A Survivor pounced by a Hunter or choked by a Smoker.
    
    Mollie: Molotov Cocktail.
    
    Pounced: Being damaged by a Hunter.
    
    Protect: Kill an Infected harming another Survivor's back.
    
    Rescue: Get a Survivor back into the game from a Rescue Closet.
    
    Save: Kill a Hunter or Smoker attacking a helpless Survivor, or help a Survivor
    back on their feet.
    
    SI: Special Infected.
    
    Special Infected: The three lesser Special Infected; Hunter, Smoker, and
    Boomer. They appear frequently throughout the Campaigns.
    
    Supplies: Various usable items including Pain Pills, Health Kits, and Weapons.
    
    Vampires: Infected.
    
    Zombies: Common Infected.
    
    -----------------------
    2.14 >Types of Players<
    -----------------------
    There's many types of people to encounter online. Most of them are okay, but
    some are even better and care about the safety of others more than maybe even
    themselves (be sure to add these kinds of people as friends). Others are
    completely rotten, and should be kicked out of the game immediately. Left 4
    Dead is much like MMORPGs such as World of Warcraft, and the likes of Ninjas
    and griefers must never be tolerated.
    
    Good Players (very good to stick around with):
    -Are adept and they know what they're doing.
    -Know all the maps inside and out.
    -Will do their best to not leave their teammates behind.
    -Use their Mics responsibly, or uses Voice Commands.
    -Stick together with the rest of the group.
    -Will tell others where supplies are at.
    -Wait for everyone else before initiating Crescendo Events.
    -Will apologize for anything bad they've done.
    
    Bad Players:
    -Leave players behind because "the game's called Left 4 Dead".
    -Always shoot their teammates intentionally.
    -Rush through the level ahead of their teammates.
    -Berate their teammates.
    -Will waste Medkits, Pills, etc intentionally.
    -Spam songs through their Mics.
    -Initiate Crescendo Events on sight.
    
    New Players (not to be confused with Bad Players):
    -Don't really know the game all that well.
    -Often shoot their teammates by accident.
    -Don't use communication well.
    -Usually get lost.
    -Receive Achievements that are easy during public games.
    
    Bots:
    -Try their best to shoot Zombies and help players.
    -Cannot use Grenades or Miniguns.
    -Sometimes know what they're doing.
    -Always stick beside Human players.
    -Don't do friendly fire.
    -Don't intentionally activate Crescendos or Finales.
    -Are able to teleport to a Human Survivor if they are far enough behind or lost
    enough.
    -Sometimes rush towards the Safe Room, Weapons, or other Supplies if they're
    close enough.
    -Sometimes get stuck in certain parts of Custom Maps.
    -Will simply pick up the nearest Tier 1 Weapon available.
    -Always have Tier 2 Weapon preferences depending on their character.
    -If they haven't come across a Tier 2 Weapon that's their favourite yet,
    they'll pick up the nearest one in the meantime.
    -Can't sacrifice themselves in The Sacrifice.
    
    What to do with these players? Let's see...
    
    Good Players:
    -Feel free to invite them to be a friend! Play again sometime!
    -Want to be in a group together? Go right ahead!
    -Have fun!
    
    Bad Players:
    -Leave THEM 4 Dead as a sign of poetic justice.
    -Boot them out of the game with extreme prejudice.
    -Convince the other players to vote them out.
    -Constantly berate THEM in order to make them quit (Warning: may backfire).
    -Kill them over and over and over, and refuse to help them at all.
    
    New Players:
    -Give them advice and orders.
    -Tell them that they should play on Easy difficulty first.
    -Tell them to press Y to talk.
    
    Bots:
    -Upon severe injury, try using a Health Kit first before the Bots try to help
    out. This way, one can obtain an extra Health Kit to save up for.
    -Do the same for unhealthy Bots. Don't worry, they won't forget the deal!
    -Use the "Look!" command for supplies; this may prompt the Bot to pick it up.
    -If a Bot is trying to heal a player, that player should bring out their own
    Health Kit or Pills to stop them.
    
    ===========================
    3.00 >Campaign Walkthrough<
    ===========================
    This is the walkthrough for each Campaign. Although the locations of Weapons,
    supplies, enemies, etc. will vary due to the nature of the Director, the path
    to escape will remain the same. I'll only state the path that must be taken to
    simply pass the level (should any Boss Infected be encountered, try to take the
    Against Infected tips into consideration. Also, try to work as a team
    throughout these journeys). Some parts of the Campaigns will differ between
    Co-op and Versus mode (other than the actions of the Infected).
    
    ===============
    3.10 >No Mercy<
    ===============
    
    Tagline: "Curing the Infection, one bullet at a time."
    Objective: Make your way to Mercy Hospital for a rooftop rescue.
    Location: Fairfield.
    Setting: Urban, Hospital.
    Rescue Vehicle: News 5 Helicopter.
    
    No Mercy is considered to be the most popular Campaign in the entire game, due
    to its dark urban setting and signature Hospital. The Campaign also starts off
    where the introduction cutscene (seen when loading the game) ends.
    
    ---------------------
    3.11 >The Apartments<
    ---------------------
    
    Difficulty: Easy.
    Crescendo Event: None.
    Unique Panic Events: Alarm Car.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    Francis hates introductions.
    
    After seeing the Helicopter fly by, grab a Weapon and a Health Kit. Be sure
    that everyone has a Weapon and a Health Kit. There are two ways into the
    apartments below; going through the Door and down the stairs, or breaking the
    glass window on the room and drop down to the room underneath. From those
    points, locate another set of stairs heading downward. There's bound to be
    Infected across both paths, so clear each and every room of them.
    
    Check this floor's rooms for supplies and extra Infected to kill. The floor
    also has a hole in it leading to another floor below. Be sure to explore this
    floor thoroughly before hopping down the One-Way Passage.
    
    ---------------
    One Way Passage
    ---------------
    
    There may be some supplies in the closet on the opposite side of the hole too.
    Check the last floor's rooms for supplies before heading outdoors (bathrooms,
    closets, etc). Some of the walls may be smashed.
    
    Head left and check the Cars to see if they have any extra Pistols. The Door to
    the left leads to a supply room, which may or may not contain various supplies.
    After checking out that room, continue advancing through the alley leading to
    the street. Eyes and ears for Infected lurking in or above the alley.
    
    Turn right and go through the Door to the right. This structure has a First Aid
    Station in it, which almost always contains Pills (although there may be a
    Health Kit in Versus mode). After checking the structure, head back outside on
    the street.
    
    Alternatively, instead of going through the aforementioned building, head
    straight across the street, behind the truck. This storage area is dark, but it
    still leads to the level's Safe House. In both cases, watch out for Boomers
    that try to take advantage of the Survivors' greed and the tight areas.
    
    Both paths lead to the Safe House, located past the descending stairs. Avoid
    the Alarm Car and head down the Stairs. The Safe House is just up ahead. Enter
    it and close the Door to complete the level.
    
    -----------------
    3.12 >The Subway<
    -----------------
    
    Difficulty: Medium.
    Crescendo Event: Generator Switch.
    Unique Panic Events: Alarm Car.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    Before heading out, try taking a few cheap shots at the Infected outside the
    Safe Room. When ready, head out, and take a few more shots at the Infected
    below the hole.
    
    Before jumping down, however, be sure to use up all the extra Health Kits in
    the Safe Room, and grab some more Ammo. Beware of the hole in the ceiling in
    this area, as Smokers and Hunters often like to perch themselves up there.
    
    ---------------
    One Way Passage
    ---------------
    
    Jump down, and fight off any Infected in the way. The narrow corridor has a
    vent and maybe even some Grenades. The vent leads to some stairs. The flight of
    stairs leading up leads to a dead end, but it may have more Grenades.
    
    Back at the hole, there's another flight of stairs. Both the stairs and the
    vent leads to a defunct escalator, which leads to a room with two booths, some
    tables, and various (useless) phones. There may be some Tier 2 Weapons on the
    table next to one of the booths, and in the booths themselves could be some
    Grenades or Pills.
    
    When ready, turn left and head up either flight of stairs. They lead to the
    subway system. Check the benches and subway cars for supplies, and follow the
    subway tunnel.
    
    Francis hates Subways.
    
    In the middle of a tunnel is a table beside a subway car which always has a
    pile of Ammo on it (and possibly Weapons too). Keep following the tunnel
    through the subway train to the end of the line (Beware! Tanks tend to ambush
    the Survivors here). There's a table which may or may not have some good
    Weapons on it. The room to the right may have some extra supplies. The door to
    the left leads to some more stairs going upward. This is the way to advance.
    
    The floor above is quite desolate, so kill off any Infected that may be
    wandering around, and then move across the room. Check the table for anything
    interesting, and then head up more stairs. Watch out for the hole in the
    ceiling!
    
    Welcome to the Generator Room. There are likely to be Molotovs on the tables
    surrounding the opposite end of the door. There's also a First Aid Station in
    the room to the right, along with a Minigun. To exit this room, head to the
    steel door and activate the switch. Make sure everyone's ready before flipping
    the switch.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    Find a good place to stay and fight. There's the corner with the pipe, which is
    fairly fortified. There's also the room with the First Aid Station in it, which
    has the Minigun (someone should cover the hole in this room should the
    Survivors stay here). Since there may be Molotovs on the barricade of tables,
    try using them to cover the various entrances (Gas Cans can be used instead).
    Once the wave of Infected is destroyed, head through the Steel Door and go up
    the stairs (again).
    
    See the lighted room? Go there and take some Ammo from the pile, and secure the
    Weapons there if there's any. Head out the other door and check the rooms for
    more supplies.
    
    While it's tempting to jump out the window and onto the street, resist that
    temptation and head down the stairs (after searching every room on this floor).
    Search the floor for more supplies, and then head out. One way is through the
    doors directly leading to the street. Another way is out the emergency exit
    that connects to an alley leading further up the street. Watch out for any Boss
    Infected that happen to spawn in this miserable lane.
    
    Regardless, move across the street, avoiding the Alarm Car in front of the
    building ahead, and then enter the pawn shop. Enter the Safe Room and relax.
    
    **********
    *Survival*
    **********
    
    The Generator Door may open, but there's still no way out! One good place to
    hide is at the upper floor (once the door's open). Another place to camp is at
    the corner with the pipes. Of course, once a Tank comes, it's a good time to
    displace!
    
    -----------------
    3.13 >The Sewers<
    -----------------
    
    Difficulty: Medium.
    Crescendo Event: Station Lift.
    Unique Panic Events: None.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, Pistol, 4 Health Kits, Ammo
    Pile.
    
    Exit the Safe Room, and meet a fork in the alley. The left path leads directly
    to the building connected to the next area. The right path leads to a storage
    room with supplies, and a garage with even more supplies! Head through the
    door. In the kitchen, find the washroom, as it may contain supplies. Go outside
    and take a look at the warehouse. This is the area the Survivors must head to
    next. First, however, turn right, and shoot the gas station pumps, causing them
    to explode (make sure nobody's near the gas station). With that hazard out of
    the way, check the garage to the right for any goodies, then approach what's
    left of the gas station. To the right is a dumpster connected to a room with an
    abundance of supplies. To the left is a lift that will extend to the rooftop.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    Find a good place to stand when the lift is activated. One good spot is the
    room next to the dumpster (have one Survivor run to the lift and then run
    back). Another way to get through this is to make a run for the windows ahead,
    leading to a storage room. In either case, this will be a long fight. When on
    the roofs of the warehouse, the Survivors must be aware of any Infected hoping
    to drag them back down, forcing them to go all the way back to the lift!
    
    After slaughtering dozens of zombies, head to the warehouse, and drop down the
    hole. Make use of the First Aid Station's supplies, and check the closet. Be
    sure to grab a bunch of Ammo from the pile on the desk as well. This is another
    area with lots of rooms in it, so check them out. Beware of Boomers and Hunters
    lurking in the darkness.
    
    The dark storage room is where the Survivors must head to. Get past this room
    and through the door. Turn right and check the room to the left for some extra
    items. Navigate through the hallways and down the stairs to a room full of fuel
    tanks (they won't explode). There are two ways down to the sewer; one at the
    end of this room, and one in the room to the right.
    
    ---------------
    One Way Passage
    ---------------
    
    Before entering the sewers, make sure there are no Hunters or Smokers in the
    area, as the Survivors cannot go back and help any stragglers. Head down and
    follow the lights (don't worry, they are in no way related to Heaven or death).
    
    Francis hates Sewers.
    
    Locate a door in the sewer. Nab anything in this room, then crawl through the
    tunnel to another portion of the sewer. This area has a ladder. Exterminate any
    Infected down here before climbing back to the surface.
    
    If the surface is full of Infected, make a break for the dumpster to the right
    and hold out. Otherwise, head to the front doors of Mercy Hospital. In front of
    that is an Ambulance that will contain Health Kits or Pain Pills. Search the
    reception room for any additonal supplies, then get into the Safe Room!
    
    **********
    *Survival*
    **********
    
    The lower areas of the warehouse are blocked off, as well as the room next to
    the dumpster. Avoid the garage, as it has a Car in it. Instead, try making a
    break for the upper floor of the warehouse, and hide in it! This is a
    formidable position to stand, although there's not a pack of Ammo here. Try
    saving Ammo for Tanks.
    
    -------------------
    3.14 >The Hospital<
    -------------------
    
    Difficulty: Hard.
    Crescendo Event: Elevator.
    Unique Panic Events: None.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, 4
    Health Kits, Ammo Cache.
    
    Exit the Safe Room once everyone's decided on a Weapon. The path to the left
    leads to a dead end, but one might as well kill the Infected there anyways. The
    path to the right leads to a stairwell. Before heading up though, explore all
    the rooms in this floor to prevent an overflow of Infected.
    
    Francis hates Hospitals. And doctors, and lawyers, and cops...
    
    Head up the stairs and go through either the lobby or through the rooms to the
    right. Step up the stairs and walk straight through (take a peek at the rooms
    to the left for anything interesting). Watch out for any Smokers that will try
    to pull the Survivors off the ledge of the lobby. Go up the stairs in the same
    stairwell and then turn right (the area to the left is dull, and will not
    likely contain anything good). Go through the doors and then explore this
    area's rooms. This area also has the Elevator (there's no way the Survivors
    are willing to walk all the way to the roof!).
    
    Grab some Ammo from the pile, and then find a good place to sit down and hold
    out. One good place to stay is the room on the opposite side of the hallway
    from the elevator. Another good place is the corner next to the Ammo clump.
    
    Francis hates elevators.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    When the elevator's here, get in and stay out of sight of the hallway (try not
    to get pulled by a Smoker)! After sending the elevator up, listen to a few good
    jokes or small talk in the elevator. Beware of any Hunters that may try to
    ambush the Survivors in the elevator through the hole in the roof, and keep an
    eye out for any Infected climbing the pipes in the shaft. Once the elevator
    reaches the 28th floor, get out.
    
    Francis doesn't hate Vests.
    
    The grates leading to the shaft may lead to some hidden Infected. Keep
    advancing and head to the edge of the floor. When trying not to fall off, the
    Survivors must follow the path leading to the Safe Room. Try not to get lost
    in the beams or walls. Along the way, there may be a Boss Infected waiting for
    the Survivors, so deal with it accordingly. The place is spacious enough for
    the Survivors to take appropriate action. Eventually, the Safe Room will be in
    sight, so enter it pronto!
    
    **********
    *Survival*
    **********
    
    Yikes! This place is tight! One good place to hold out is in the room with the
    double-doors (near where the Survivors would normally enter this room). Auto
    Shotguns are the way to go here!
    
    -------------------------
    3.15 >The Rooftop Finale<
    -------------------------
    
    Difficulty: Insane!
    Crescendo Event: Rooftop Radio.
    Unique Panic Events: None.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, 2 Pipe
    Bombs, 2 Molotovs, 4 Health Kits, Ammo Cache.
    
    Make sure everyone has a Weapon, two Pistols, a Grenade, and a Health Kit
    before heading out. Go up the stairwell. The exit is near the other end of the
    hallway. Fight through the hallway (be sure to kill any Infected lurking in the
    rooms on either side), and then turn left to find the elevator shaft. Crawl
    through the grate and climb the ladder. Climb another ladder attached to the
    stationary elevator box leading to the rooftop.
    
    ---------------
    One Way Passage
    ---------------
    
    Clear the area of infected, and jump onto the helipad (don't leave anybody
    behind just like before!). Turn right to find a building with a Radio in it.
    There is a First Aid Station here, along with some Weapons and Ammo. On the top
    of the building is a Minigun and a ladder leading to the peak of the building
    (this structure is changed in Versus mode). There may be some Grenades on the
    various structures, so grab some if needed. Don't hesitate to plant any
    Explosive Cans around the various buildings either.
    
    -------------------------
    Finale! Prepare to fight!
    -------------------------
    
    Ready? Answer the Radio twice. The Helicopter is on its way, so hold out! Find
    a good place to defend. There's the Radio structure, which is arguably the most
    versatile position to stay on. Underneath the helipad also works. The Radio
    structure also has a set of stairs that only has two doors leading to it.
    
    In any case, if a Tank arrives, it's usually a good idea to displace and run.
    Try not to stay too close to the edge if the Tank's around. He's strong enough
    to launch a Survivor off the building (or maybe even to the moon! Well, maybe
    not)!
    
    Once two waves of Infected have been defeated (and two Tanks have been slain),
    the helicopter will arrive at the helipad. Make a break for the helipad (use a
    Pipe Bomb to distract the Infected) and hop on! The helicopter flies out of the
    scene safely!
    
    **********
    *Survival*
    **********
    
    A good position to stay (although it's hard to get to) is the concrete cube
    that's not too far from the Radio building. To get to it, get onto the building
    with the Grenades and hop across onto the generator. Hop again to get to the
    cube. Most Infected will have difficulty getting there (Tanks on the other
    hand, are insanely lethal).
    
    ===================
    3.20 >Crash Course<
    ===================
    
    Tagline: "Crashing will be the easiest thing they do today."
    Objective: Acquire a suitable mode of transportation to escape to Riverside.
    Location: Riverside factory district.
    Setting: Suburban.
    Rescue Vehicle: An Armoured Van.
    
    Crash Course is the interlude between No Mercy and Death Toll. It was initially
    planned for that Helicopter Pilot to become Infected, causing the Helicopter to
    crash. Crash Course brings that plan back, linking No Mercy and Death Toll, and
    possibly creating speculation about more interludes between the rest of the
    Campaigns.
    
    Crash Course is two levels long, making it suitable for Versus matches. The
    locations of the Car Alarms constantly change in this campaign, and the
    Infected are angrier than ever! Watch out for the Cars in this Campaign! Also,
    do note that most of the stronger Weapons found in this Campaign aren't all
    found together all at once (in fact, only one or two of the types appear at a
    time!). It is also home to a lot of Explosive Cans.
    
    -----------------
    3.21 >The Alleys<
    -----------------
    
    Difficulty: Medium.
    Crescendo Event: Howitzer.
    Unique Panic Events: Various Alarm Cars.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits.
    
    Francis hates Helicopters. So do Louis, Zoey, and Bill.
    
    After possibly examining the corpse of the Helicopter pilot on the wall, grab a
    Weapon and a Health Kit near the crashed Helicopter. Cross the road and enter
    the building, as it likely has Grenades and Pills inside (do be aware that the
    Infected may take advantage of this area). The road to the left is the way
    deeper into this crossroads, so walk across the road (checking the buildings to
    the left for more supplies).
    
    The huge 18-wheeler is blocking the road, so the only way past it is through
    the warehouse. Its entrance can be found to the right. There's an abundance of
    Grenades, Pills, Graffiti, and possibly a Health Kit or two. Exit the warehouse
    on the other side of the truck and take a look at the alley near it (the
    smaller truck may contain some Weapons).
    
    For the district ahead, check the house to the left for more supplies (and a
    broken steam pipe), and then head to the building on the other side of the
    road. There's bound to be better Weapons here. Enter the building and examine
    the rooms, then exit and head for the road under the bridge.
    
    Francis doesn't mind Steam. Francis hates latest issues.
    
    Looks like the Army wasn't capable of holding back the Infected. Make use of
    the Ammo Cache and then go around the train wreckage on the road (it seems that
    it's a bad day to be driving things today). The house on the right may contain
    some goodies, but the way to advance is straight ahead, leading down to the
    road below. Be sure to clear the area of Infected before hopping down (and be
    sure nobody is left behind). The road itself leads to more buildings (which,
    again, may contain more supplies) and a hill. Beware; if a Tank appears here,
    try to avoid the Cars on the streets and take it down fast!
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    The hill leads to a Howitzer, aimed conviniently towards a barricade on the
    bridge. As the bridge is the only way to get across to Riverside, it must be
    fired to get through. Check the house nearby for even more junk to use, and
    discuss with the rest of the team where to hold out. Places include the truck
    behind the cannon, or inside the building.
    
    In any case, it's going to be a heroic stand! Use the many Gas/Propane bombs
    against the waves of Infected, and then once everything's all quiet and docile,
    cross the bridge.
    
    Check the Ambulance for health supplies, and then keep crossing the bridge
    until land is in sight. The house likely contains more useful objects (although
    don't bother with this place in Versus), and the warehouse is the home to a
    Safe Zone! Enter it pronto!
    
    **********
    *Survival*
    **********
    
    It's a never-ending horde of Zombies, so the truck isn't all that safe anymore!
    The inside of the house may be the Survivor's best bet.
    
    -----------------------------
    3.22 >The Truck Depot Finale<
    -----------------------------
    
    Difficulty: Insane!
    Crescendo Event: Garage Generator.
    Unique Panic Events: Various Alarm Cars.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    Exit the Safe Room and take a peek in the warehouse ahead. Head back to the
    road (through either door of the warehouse) and head towards the vehicles. Go
    inside the buildings in order to get past them. However, watch for a Car Alarm
    that's hidden behind the door! There's weapons next to the humvee.
    
    --------------------------
    One Way Passage (Optional)
    --------------------------
    
    If the Survivors have already triggered the Car Alarm, and are in no mood for
    dilly-dallying, they have the option to hop onto the aforementioned car and
    leap over the fence, onto the truck (which allows them to skip the following
    paragraph).
    
    If they hadn't, they should keep following the road, examining the buildings to
    the sides as they go along. There's more Weapons near the riot fences, but just
    keep advancing on the road! That's right, just keep doing the usual part of
    Left 4 Dead gameplay!
    
    There's an Ammo Cache in the middle of this open area. The way through is
    through the container, so crawl through it. Take a peek in the next structure
    ahead, along with the warehouse to the right. More goodies can be located
    inside the ruined building ahead.
    
    ---------------
    One Way Passage
    ---------------
    
    The Survivors are almost out of here! Go through the broken fence, and jump
    onto the truck (after checking the room to the left of course). Leap across to
    the yard.
    
    This yard is the finale portion of this level. Most of the necessary weapons
    are in front of the fortified bus, while the Grenades are located in the depot
    (in the huge room inside), and on the upper area outside of the depot. The
    Minigun is located on top of the huge room, while the Survivors' method of
    escape is a thick (and functional) Bus elevated in the depot. To get it down,
    they must activate the Generator outside in the yard (unlike Radios, the
    Generator will take more than just a push to get the action started!).
    
    Ideal places to fight are on top of the fortified bus, next to the Minigun, or
    inside the boxed room. Discuss with the group where to hide, and then pick
    someone to charge the Generator.
    
    -------------------------
    Finale! Prepare to fight!
    -------------------------
    
    Be sure to cover that Survivor when he/she's making it back! The Infected will
    stop at nothing to prevent the Survivors from living another day! When the
    third wave of the Finale is commencing, the Generator will stop (and the lights
    in the depot will go out)! Act quick and get it running again (a Pipe Bomb can
    drastically turn the tables in the Survivors' favour!). The Tanks, meanwhile,
    should be dealt with heavy weapons before they can smash the Survivors to
    pieces!
    
    When the Bus is down on the ground, get inside through the rear, and watch as
    the Survivors drive their way to Riverside!
    
    **********
    *Survival*
    **********
    
    As mentioned before, there are three places to fight off the Infected. The
    Generator won't stop, but that won't matter as the Survivors still can't get
    out anyways!
    
    =================
    3.30 >Death Toll<
    =================
    
    Tagline: "Hell came to Earth. These four are gonna send it back."
    Objective: Get to the small town of Riverside for a waterfront rescue.
    Location: Riverside.
    Setting: Suburban.
    Rescue Vehicle: The Slaters' Boat.
    
    This Campaign takes place in the woods, then in a quiet typical town. It is
    well-known for the Church Guy. Death Toll does not contain any environmental
    Panic Events.
    
    -------------------
    3.31 >The Turnpike<
    -------------------
    
    Difficulty: Easy.
    Crescendo Event: None.
    Unique Panic Events: None.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits.
    
    Grab the items in the trunk, and then follow the street. Watch out for Infected
    lurking in the forests to the sides (especially Smokers). Since the bridge is
    out, head down the sides of the bridge and climb the ladders on the other side.
    Head into the tunnel.
    
    Francis hates tunnels.
    
    To the left is a passageway that passes through the pile of rubble blocking the
    tunnel. In the tunnel itself, keep an eye on the sides for any supplies. Jump
    over the cars and then head left, down the stairs.
    
    There are two ways into the next room, which has a pile of Ammo, and likely
    some Grenades and/or Pills. The room itself is probably full of Infected, so
    flush them out with a Pipe Bomb. The exit is on the upper level of this room,
    opposite of its entrance.
    
    Outside the tunnel is an open woodland area with a fence. Run straight across
    and the Safe House is above the area, which can be accessed by sprinting up the
    hill. Ignore the area left of the Safe House.
    
    -----------------
    3.32 >The Drains<
    -----------------
    
    Difficulty: Medium.
    Crescendo Event: Floodgate.
    Unique Panic Events: None.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    In this relatively large Safe Room, go up the stairs and shoot the Infected
    outside. When ready, head out.
    
    In the drains, go through either drain opening. The one ahead leads downward,
    while the one on the right leads to the upper levels. They both lead to a
    circular room with Weapons. Get to the lower levels (either via the first path
    or climbing down the ladder). The area is likely to be full of Infected, so
    grab those weapons and shoot them to bits! When ready, go up the ramp and check
    the closet for anything interesting. Next, head right and enter the room.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    The only way to get to the other side is to activate the bridge. When
    everyone's good to go, flip the switch (get up there by climbing a ladder and
    crossing a catwalk). Fight off the Infected at this point, until the floodgate
    is closed.
    
    Walk across the floodgate and enter the room ahead. It has a pile of Ammo and
    a First Aid Station. Turn left and enter another tube. Enter either path and
    then climb up through either the broken stairs or the manhole once grabbing all
    the supplies in this area. 
    
    Head outside for some fresh air, and then turn left twice (around the
    building). There's a dark room to the left that may contain supplies (and, in
    worse cases, a Witch). The safe room is up ahead in the building (in the
    caboose). Avoid the Infected and get in there!
    
    **********
    *Survival*
    **********
    
    A strange glitch here is to use a Pipe Bomb to launch the wooden crate under
    the catwalk up to the area opposite of the switch. Then use Propane Tanks to
    push the box to the alcove above. The Survivors can make a break for the Safe
    Room this way! Playing fairly, the best place to hold up is the area next to
    the switch (the switch itself is on fire, so don't go near there).
    
    -----------------
    3.33 >The Church<
    -----------------
    
    Difficulty: Medium.
    Crescendo Event: Church Guy.
    Unique Panic Events: None.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits.
    
    Exit this cramped Safe Room and prance into the trainyard. Try not to get lost.
    The building to the right may contain some good weapons, along with the two
    floors of the tower located directly in the middle of the field. When finished
    with those places, head straight across to the long building. Go up the stairs
    to the left and check the building's rooms for anything useful. From there,
    walk across the wooden plank that leads outside the trainyard's fences.
    
    Francis hates Trainyards.
    
    ---------------
    One Way Passage
    ---------------
    
    Land on one of the lower cars and check the shack for anything left behind.
    Advance across the road and check the shack to the right, as it contains a
    First Aid Station, and possibly some more Weapons. When ready, keep walking on
    the road.
    
    The cabin in the middle of nowhere is hard to miss, so enter it. It has a pile
    of Ammo, and maybe even some guns in the living room! Search the entire house
    for goodies, then exit on the other side. Be careful, as Boss Infected like to
    hang out here.
    
    Examine the misplaced ambulance for Health Kits or Pills. Enter the gap in the
    fence and check the shack for any items. There's lights in the church, so run
    across the graveyard and enter the church. Before opening the Safe Room door,
    there's a room with Weapons and Ammo. Then approach the red door.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    The Safe Room seems to be occupied, and the guy inside there isn't willing to
    let our heroes in! He's even summoned the Infected to the church (with the
    bell)! Find a good place to stay and fight against the Infected in the church!
    
    As a sign of poetic justice, the miserable Church Guy transforms into an
    Infected (seems he wasn't immune after all!), so kill him with pleasure and
    rush into the Safe Room!
    
    **********
    *Survival*
    **********
    
    It's a reunion with the Church Guy, and he's here to stay! Try hiding in a
    corner of the church (opposite of the door), or on the benches outside. All
    Survivors should use Auto Shotguns, in order to deal with Tanks swiftly.
    
    ---------------
    3.34 >The Town<
    ---------------
    
    Difficulty: Hard.
    Crescendo Event: Forklift.
    Unique Panic Events: None.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, 4 Health Kits,
    Ammo Cache.
    
    Riverside's a bust. Looks like the Survivors will have to escape this false
    haven.
    
    Climb the ladder and collect the supplies in the second floor of the Safe Room.
    Exit through the door and notice all the Infected outside (a Hunting Rifle may
    work well here). When prepared, climb down the ladder and go down the hill.
    There may be Infected near the van to the right.
    
    Head to the store and enter it. There's a pile of Ammo on the small room's
    table. Exit the store and feel free to take a peek inside the room that failed
    to hold out. Turn left and find the court. Go through the rooms to the left and
    head out to another part of the town.
    
    Follow the road and hop onto the truck to get a good view. Once all Infected
    have been purged from this area, check the room to the left for Ammo. The way
    out of this maze is on a balcony. To get up there, hop onto the van.
    
    Check the office's washrooms to the left. Done? Smash a window and hop out. Get
    down onto the street, and grab any Weapons and Ammo on the tables. Once
    everyone's good to go, activate the forklift.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    The best place to stand is at the benches, near the Minigun. The Infected will
    crawl over the rubble blocking the street. They will also be climbing over the
    riot fence on the opposite side, as well as through the windows of the office.
    Try not to get overwhelmed and be sure to cover all flanks. The Minigun is
    vulnerable to the Infected running around the van.
    
    When the area is clear, run over the ramp made out of the rubble that's now
    over the forklift, and hop onto the other side (being wary of any Infected
    lurking on the road). Head to the end of the street and turn left after passing
    the bus.
    
    In the alley, turn left, and feel free to browse through the buildings. Turn
    left again and go up the stairs (don't bother going into the rooms beneath the
    stairs). Hop out of the window and cross the planks. In this fashion, jump to
    the alley on the right side of the fence. Make sure nobody is left on the
    rooftop to get killed by Smokers or Hunters. The Safe Room is to the right, so
    get in there!
    
    **********
    *Survival*
    **********
    
    The Street is wide open, but there are ways of living for a long time here. The
    riot fences is a good spot, as the Infected will (strangely) only attack from
    one of the two flanks at a time! The Tank can also be seen a mile (or
    kilometre) away, providing enough time to fill his guts full of lead!
    
    ---------------------------
    3.35 >The Boathouse Finale<
    ---------------------------
    
    Difficulty: Insane!
    Crescendo Event: Boathouse Radio.
    Unique Panic Events: None.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, Ammo
    Pile.
    
    Francis hates vans.
    
    Exit the Safe Room and explore the garage for any supplies. Exit through the
    door on the other end, and notice all the Infected around this area. There's
    likely a Pipe Bomb on the humvee, so make a dash for it and throw it to flush
    those zombies out! Head for the house and check its rooms for supplies (a
    Health Kit is in the bathroom, and some Pills are often found in the kitchen).
    
    Francis hates small towns.
    
    Ready to move out? Head out the yard and exit the suburbs, then go for the
    shack straight ahead (watch out for any ambushing Infected). There's another
    Health Kit and more supplies in this shack. Go up the hill with the wooden
    fences and then advance into the woodlands (Boss Infected like to ambush the
    Survivors at this point, so advance with caution).
    
    Francis hates the water.
    
    The house to the left contains yet another Health Kit and more supplies, so
    don't miss it (that's a reason to ignore the road)! The house to the right
    rarely contains anything of interest, so just ignore it. The third house in
    this area is past the two other houses.
    
    There's a Radio in the house. Talk to the man on the other side. He and his
    wife happen to have a boat. The washroom in this cabin contains Pills. Grenades
    are located on the house's rear, on the balcony, and on the second floor. Ideal
    places to hang out are on the balcony and house, on the rear, on the dock away
    from the house, and on the rocks on the opposite side. There's also the
    washroom and closet.
    
    -------------------------
    Finale! Prepare to fight!
    -------------------------
    
    Ask the man to get moving, and run to wherever the Survivors are going to hide.
    The Infected will swarm, so it doesn't hurt to use the Minigun on the balcony
    to tear them up (it's unable to target the areas to the left, so have someone
    cover that area). A Molotov is more than capable of burning any Infected that
    tries to climb the ledge left of the Minigun. Pipe Bombs can also lure the
    Infected in sight of the Minigun. Tanks will often appear far in the distance,
    so a Hunting Rifle and the Minigun will be able to give him some damage before
    he even gets close!
    
    Once the boat arrives, make a mad dash for the dock in the distance, and wait
    for the boat to come to a complete stop. Pipe Bombs can draw away the Infected.
    When the boat stops, jump in! The boat manages to navigate out of the scene.
    
    **********
    *Survival*
    **********
    
    There are a number of places to stay until death. There's the rocks, the dock,
    and the rear. All of these places can hold out for quite a while. Try not to
    lead the Tank into the water; it's more than capable of extinguishing fires.
    
    ===============
    3.40 >Dead Air<
    ===============
    
    Tagline: "Their flight just got delayed. Permanently."
    Objective: Get to the runway of Metro Airport for an airlift rescue.
    Location: Newburg.
    Setting: Urban, Airport.
    Rescue Vehicle: Metro International Airplane.
    
    Dead Air is another urban campaign. Unlike No Mercy, it's not completely dark,
    as the sun is still setting (or is that fire in the distance?). Its signature
    feature is the Airport. It also houses the biggest amount of environmental
    Panic Events.
    
    ---------------------
    3.41 >The Greenhouse<
    ---------------------
    
    Difficulty: Easy.
    Crescendo Event: None.
    Unique Panic Events: Car Alarm.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Pipe Bombs, 4 Molotovs, 4
    Health Kits, Ammo Cache.
    
    Francis hates Planes.
    
    Since the area ahead contains Infected, feel free to throw a Pipe Bomb or two
    in there to kill them. Go through the garden and exit the greenhouse. Walk the
    plank connecting the two buildings and enter the rooms to the left (eyes out
    for any Smokers lurking in the alleys below). Explore the rooms and head out
    the windows on the other side. Climb the ladder to the right and hop off the
    ledges on the other side.
    
    ---------------
    One Way Passage
    ---------------
    
    Enter through the hole in the building ahead and go down the stairs (there
    could be a Pistol here). There may be supplies or Infected to the left. To the
    right is the exit.
    
    Jump onto the eighteen-wheeler and enter the hotel ahead, avoiding the Alarm
    Car here. Enter the kitchen (which is the Safe Room) and close the door.
    
    ----------------
    3.42 >The Crane<
    ----------------
    
    Difficulty: Medium.
    Crescendo Event: Crane.
    Unique Panic Events: Alarm Car.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    Exit the Safe Room. Notice the freezer to the right? Not even a Tank can get
    past its door (should it arrive around here). Exit the storage room and clear
    the alley from the Infected.
    
    ---------------
    One Way Passage
    ---------------
    
    Climb up the mound of garbage to get to the other side of the fence (there's no
    getting back!). Get over the cardboard boxes to get up on top of the truck.
    Climb the ladder over the truck and go up the stairs (beware of Special
    Infected on the stairs). Enter the apartments through the windows and then head
    to the hallway (hopefully some Weapons will appear in the bedroom).
    
    Check the rooms on the sides of the hallway for any supplies. Head up the
    stairs and check the room to the left for more supplies. Go to the room on the
    right and see if there's any good Weapons on the desk. Check the other two
    rooms for anything of interest and then hop out the window to the right, onto
    the rooftops. If there's a Tank around here, be sure not to stay too close to
    the edges of the roofs!
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    Notice the dumpster that's being hung by the crane. Clear the area of zombies
    and then, when ready, climb the ladder on the crane and activate the switch.
    While the dumpster is being lowered, the Infected will arrive! Use the Gas Cans
    to light the field on fire, or use Molotovs or Pipe Bombs. One good spot to
    stay is in the crane itself. When the Infected become docile, head to the
    dumpster and climb the ladder that's attatched to it.
    
    Navigate across the rooftops and then enter the building through the windows.
    Examine all the rooms in this building, then head to the office. There's a
    plank leading to another building, so cross it.
    
    Francis hates lawyers.
    
    The area has a First Aid Station and an Ammo Cache, and maybe even some
    Weapons! Take a peek in the smaller rooms, and then go down the stairs. On all
    floors of the office cubicles, there are a few other rooms that may be of
    interest to the Survivors. Beware of Boss Infected here.
    
    At the bottom floor, check the rooms for even more supplies, and exit through
    either the main door or through the alley. Avoid the Alarm Car (it can be
    triggered early from the area mentioned at the start of paragraph four), and
    jump into the building across the street. Enter the Safe Room once all the
    rooms in the building have been explored.
    
    **********
    *Survival*
    **********
    
    There's a neat glitch to surpass the hardships of The Crane. See that eighteen-
    wheeler truck on the street below? Hop onto the building's ledge and hold
    "Jump" and "Action" while falling onto the truck (the Survivors will somehow
    survive this way, otherwise they will certainly perish). Another Survivor must
    save them by doing the same (the second Survivor will somehow be able to pull
    the other Survivor up without being incapacitated). Jump off the truck
    (avoiding the area around the truck itself) and then head to the alley.
    Remember: One Survivor must be left behind to activate the Crane!
    
    ----------------------------
    3.43 >The Construction Site<
    ----------------------------
    
    Difficulty: Hard.
    Crescendo Event: Burning Barricade.
    Unique Panic Events: Alarm Car.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    Take a peek through the Safe Room's second floor window and shoot all Infected
    in sight. Head out and turn left. Follow the alley to find some scaffoldings.
    There's a ladder on one of them, and that one will likely be holding some
    Grenades, Weapons, or an Ammo Cache on top. From there, walk onto the concrete
    area, and notice the wooden barricade blocking the alley.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    Before shooting the Gas Can next to the barricade, find a position to hide. The
    scaffoldings ahead of the concrete area is a nice area to stand, along with the
    stairs not far from the barricade. Another way to pass through this is to throw
    a Molotov into the sky from across the site (where a staircase near a corner
    is) to blow up the barricade, and then make a run for the Safe Room at the
    start of the level. Regardless, destroy the can to burn down the planks. Fight
    off the horde, then advance through the alley. Explore the rooms to the sides
    and then make use of the Ammo Cache in the corner.
    
    Turn left and head to the street (check the room to the left for anything).
    Head to the police car and then turn right after passing the fence. Keep an eye
    on the rooftops and the generator fields for Hunters and Smokers. The dark room
    likely contains some supplies. Head back out and then go right around the
    generator and then go around (or through) the generator area to the right. Walk
    towards the fire and then enter the building to the right.
    
    Explore this room for supplies before going through the door to the left.
    There's a First Aid Station, an Ammo Cache, and maybe even some Weapons here!
    Head out the door next to the window to continue. Explore the washrooms before
    going through the hole in the wall.
    
    There may be even more supplies in the room to the left. Go around the crashed
    plane and then head left. Beware of Smokers and Hunters that lurk on the
    highway above. Explore the luggage for some supplies and notice the airport's
    garage on the other side. Avoid the Alarm Car nearby and enter the garage (be
    careful around the cars, as Tanks love to throw them).
    
    Go right and then right again to find some supplies. Head up the ramp and
    notice the stairwell straight ahead. There may be supplies around the corner,
    but nonetheless, the Survivors must head upstairs. The room to the right may
    contain some supplies if lucky. Walk across the sky bridge and then enter the
    Safe Room to the left.
    
    **********
    *Survival*
    **********
    
    This is a difficult place to fight, since the barricade will not fall, and most
    of the areas in this map are vulnerable to various Infected. One area is the
    stairwell, another is one of the scaffoldings. In either case, be sure to have
    an escape route once the Tank says hello (or have everyone use the Auto Shotgun
    to blast him away).
    
    -------------------
    3.44 >The Terminal<
    -------------------
    
    Difficulty: Hard.
    Crescendo Event: Van.
    Unique Panic Events: Metal Detector.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, 4
    Health Kits, Ammo Cache.
    
    After reading some graffiti, head out and take a look at the floor below. Feel
    free to take a few cheap shots at the Infected (especially Tanks or Witches if
    they appear down there), and then head through the offices.
    
    The corridor is very linear, but it does have rooms on its sides that will
    likely contain Grenades and Pills. At the end of the corridor are some boxes
    that may hold some Weapons (so grab them to fill up on Ammo). Go down the
    deactivated escalator and then head to the desk (most of the time there are
    Grenades here).
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    The van must be activated to break through the pile of crap that's blocking the
    way into the luggage department. Places to camp include the corner underneath
    the escalator, the bathrooms, or the desk. When the Infected have all been
    massacred, go to the luggage department and make use of the Ammo Cache.
    
    Crawl through the vent and into the luggage transfer area. Follow the stairs
    and catwalks (feel free to explore the areas to the sides). Go through the
    double doors and then turn right after walking straight a bit.
    
    Avoid the metal detectors and use the Ammo Cache that's next to the statue
    (watch out for any Smokers that intend to drag a Survivor straight through the
    metal detectors!). Check the restraunt, shop, and bathrooms in this area before
    going up the escalator.
    
    Francis hates Ayn Rand.
    
    The path out of here is straight ahead, but there may be some goodies to the
    rooms on the left. The Safe Room itself is to the right. Be sure to avoid the
    chairs and enter the Safe Room!
    
    **********
    *Survival*
    **********
    
    As mentioned before, the best spot to fight is under the escalator. Stay in the
    darkness (it seems to be safer than the rest of the map).
    
    ------------------------
    3.45 >The Runway Finale<
    ------------------------
    
    Difficulty: Insane!
    Crescendo Event: Truck Pump.
    Unique Panic Events: None.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, 4
    Health Kits, Ammo Cache.
    
    Go outside and witness a spectacular plot device (a crashing plane).
    
    ---------------
    One Way Passage
    ---------------
    
    Jump off the catwalk and head right, towards the tanker truck. The pilot's
    alive and well, but he needs help! Be prepared for the worst, so grab any
    supplies next to the truck and plant some traps around where the Survivors plan
    to hold out.
    
    Places include the truck itself (there's a ladder to climb on top of the truck,
    and there's also a Minigun nearby), the mound on the other side of the plane,
    and a little itty-bitty room off in the distance in the building. Regardless,
    activate the pump to refuel the plane (its fuel tank is empty, apparently).
    
    -------------------------
    Finale! Prepare to fight!
    -------------------------
    
    Beware of Smokers off in the distance, as they like to hide in the catwalks
    above. Also, stay away from the large objects when the Tank comes by. Treat
    them like cars. Keep holding them off until the second Tank has been killed.
    
    The plane is good to go! Wait for its hatch to open up, and run in! The plane
    flies off into the distance.
    
    **********
    *Survival*
    **********
    
    The itty-bitty room is blocked off, but the mound's position is even better!
    There are extra piles of luggage that can serve as vantage points. Make sure
    one person has the Hunting Rifle ready in case of Smoker attacks (it's also
    extremely effective versus Tanks far away).
    
    ====================
    3.40 >Blood Harvest<
    ====================
    
    Tagline: "No hope, no cure, no problem."
    Objective: Find a rural holdout being used by the military to rescue Survivors.
    Location: Allegheny.
    Setting: Rural.
    Rescue Vehicle: Military APC.
    
    Blood Harvest is a sharp contrast to all the other campaigns, as most of its
    scenery is foresty and open. It's also considered to be the last campaign.
    
    ----------------
    3.51 >The Woods<
    ----------------
    
    Difficulty: Easy.
    Crescendo Event: None.
    Unique Panic Events: None.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    Grab any gear on the picnic table and proceed through the forest. Follow the
    path and don't get lost in the trees (Infected will come out of the woods).
    There's another picnic bench that usually contains Grenades. Cross the birdge
    and enter the trailer. Use the Ammo Cache inside and nab any supplies in and
    around the trailer.
    
    Francis hates the Woods.
    
    Keep following the road. The tracks are down below, but don't even think about
    hopping through the gap in the fence to reach them! Instead, stay on the road,
    as it leads to the Safe House. With company, run to the Safe House to end the
    level. Easy as pie!
    
    -----------------
    3.52 >The Tunnel<
    -----------------
    
    Difficulty: Medium.
    Crescendo Event: Emergency Door.
    Unique Panic Events: None.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    Explore the two rooms left of the Safe Room, and then go down the stairwell on
    the opposite side of the hallway. Check both offices on this floor for Weapons.
    Crawl out of the window in the room with the table onto a catwalk. From there,
    go down the ramp to get to the lower floor. There's a table in front of the
    ramp with an Ammo Cache and maybe Weapons.
    
    Francis hates Stairs.
    
    Head to the small room next to the table. There's a First Aid Station here, and
    probably some Explosive Cans. More importantly, there's an emergency door here
    that must be opened to advance. Find a position to stay before opening it.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    The Survivors can hold out in the room with the emergency door, or on the
    catwalk (there's an area on the catwalk where the Infected cannot reach). They
    can also fight in the corner next to the Ammo Cache.
    
    Regardless, once they have defeated the hordes of Infected, the Survivors must
    pass through the open emergency door and go up the stairs. Check the rooms
    upstairs and head to the left side of the building. Exit through either the
    door or the windows (which lead to a metal awning). Then head into the tunnel
    to the left, and follow the tracks.
    
    There are various obstacles in the way, but there's always a way around it
    (jumping on other obstacles, climbing ladders, etc). There are also some rooms
    to the sides that may have goodies in them. Some of the obstacles are one-way
    passages (meaning that the Survivors need to get through them quickly to avoid
    being left behind to die). Eventually, there will be an obstacle that cannot be
    passed, so go into the corridor to the left and walk through it. The Safe Room
    is at the end of the hallway.
    
    **********
    *Survival*
    **********
    
    The catwalks closest to the emergency door serve as one of the best places to
    fight, as most Infected cannot reach that area (but beware of Smokers, Tanks,
    and sometimes Hunters).
    
    -----------------
    3.53 >The Bridge<
    -----------------
    
    Difficulty: Hard.
    Crescendo Event: Train Engine.
    Unique Panic Events: None.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    The path out of here is to the left, but the path right leads to some more
    corridors and rooms that may contain some supplies. Once outside, be careful of
    any Infected lurking in the forest (especially Boss Infected). Follow the
    obvious path towards the building above. Enter it and follow the hallways,
    stairs, etc. There may be some Pills, Grenades, or Weapons in the neglected
    areas of this building. Head out and follow the tracks to the left.
    
    The barn to the right always has an Ammo Cache, and maybe Weapons as well. Keep
    walking on the tracks (don't worry, no train is going to zoom by). The cabin on
    the left contains a First Aid Station, an Ammo Cache, and maybe another spot for
    Weapons. Notice the boxcar on the tracks across from the cabin. Keep running on
    the tracks, as they lead to a stationary train engine. The engine can be
    reversed to knock the bridge near the cabin down.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    The cabin, the barn, or the top of the boxcar are suitable areas to rest. If
    ready, activate the engine and hurry back! Once the waves of Infected have been
    suppressed, head to the now toppled bridge. Climb the bridge and hop onto the
    cliff above. If a Tank appears here, try not to fall off the cliff. The path on
    the cliff leads to the next Safe House (next to a dead cow).
    
    **********
    *Survival*
    **********
    
    The cabin is by far the best place to fight. Each survivor should crouch in all
    four corners of the room with the Ammo Cache and the First Aid Station in it. In
    this fashion, the Survivors can monitor each entry to the room. Shotguns are
    highly recommended for Survival.
    
    ------------------------
    3.54 >The Train Station<
    ------------------------
    
    Difficulty: Insane!
    Crescendo Event: None.
    Unique Panic Events: Alarm Car.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, 4 Health Kits,
    Ammo Cache.
    
    The Health Kits are on the shelf in the Safe Room. Exit the Safe Room and
    follow the path. There's a barn up ahead, with Grenades and Ammo on the second
    floor. There may be a Pistol in the first floor too.
    
    Continue on the path, which leads to the train station. Leap onto the awning
    (to avoid falling down the cliff). Enter the station and explore it and its
    many rooms for supplies. Head to the other side of the station and avoid the
    Alarm Car hidden amongst the trees.
    
    Keep following the tracks (feel free to climb up onto the parked train cars to
    gain the advantage against any angry Infected). There's another station to the
    right of the tracks with supplies. Continue on the tracks once this building
    has been examined.
    
    Yet another building lies ahead to the right side of the tracks. The tracks are
    blocked by some crashed cars here. Enter the building's basement and climb up
    two floors (be sure to explore each floor for supplies; Health Kits usually
    appear here when the Survivors are on their last legs). The top floor has a
    window that leads to the other side of the tracks.
    
    ---------------
    One Way Passage
    ---------------
    
    Safely drop to the tracks and cross the bridge, which has a train car in the
    middle of it (which also happens to be this level's Safe Room). Beware, a Tank
    usually appears on the bridge, so don't be afraid to retreat if necessary!
    
    Hanging on by just a thread? Be grateful this nightmarish level doesn't have a
    Crescendo Event!
    
    ---------------------------
    3.55 >The Farmhouse Finale<
    ---------------------------
    
    Difficulty: Insane!
    Crescendo Event: Farmhouse Radio.
    Unique Panic Events: Crop Fields (unavoidable).
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, 4
    Health Kits, Ammo Cache.
    
    Exit the train car and keep following the tracks. There's a boxcar at the end
    that the Survivors must climb up. A path is located at a cliff "connected" to
    the boxcar. Notice the signs left by the military here, along with the crop
    fields below the cliff.
    
    ---------------
    One Way Passage
    ---------------
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    Make sure everybody's ready, because entering the fields will cause the crows
    to fly, making noise, and thus, attracting hordes of Infected (birds, bloody
    useless!). The Survivors can make a mad dash to the tractor, or to the barn.
    The fields are difficult to navigate through, so the tractor may be the better
    place to run to (it's closer).
    
    Francis hates the Army.
    
    When the Infected have been repelled, head to the farm house (it's quite hard
    to miss). Collect the supplies in the house (there are objects of interest in
    both floors), then talk to the soldier on the radio.
    
    -------------------------
    Finale! Prepare to fight!
    -------------------------
    
    Places to stay together include the barn next to the house (second floor), the
    shed (opposite side of the house from the barn), and the second floor of the
    house. All of these locations are heavily fortified, so pick one of them and
    have one Survivor call the soldier a second time and make a break for that
    location.
    
    There's no Minigun, so the Tank will likely have to be dealt with by a Molotov
    and some extra punishment. Should the Survivors be in the house when the Tank
    arrives, they MUST head outside to deal with the Tank to prevent them from
    being bashed around in a tight room.
    
    Once two waves and two Tanks have been slaughtered, the military APC will drive
    by and will stop between the barn and the house (apparently, the military
    couldn't afford a gunner for extra protection). Hop into the APC and hope a
    Tank doesn't come by to ruin everything!
    
    **********
    *Survival*
    **********
    
    As stated earlier, the barn and the shed work well in Survival. Avoid staying
    in the house, as Tanks will not wait for the numerous waves of Infected to stop
    (being caught outdoors with Infected and a Tank is considered a worse-case
    scenario).
    
    ====================
    3.60 >The Sacrifice<
    ====================
    
    Tagline: "It's your funeral."
    Objective: Find a way onto an isolated island.
    Location: Rayford outskirts.
    Setting: Tear-jerking.
    Rescue Vehicle: Bridge.
    
    After an incident at the Millhaven base, the Survivors are now hoping to get
    away from it all, to a haven far away. Unfortunately, that haven happens to be
    smack-dab in the middle of the ocean. A bridge is blocking the only way out by
    river. And someone will have to risk a life in order to save the others...
    
    ----------------
    3.61 >The Docks<
    ----------------
    
    Difficulty: Medium.
    Crescendo Event: Release the Tank!
    Unique Panic Events: Alarm Car.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, 4 Health Kits, Ammo Cache.
    
    After a fairly special introduction, the Survivors must jump down to the docks
    where the usual set of starter items are located. Head towards the inland and
    up the ramp. Be sure to check the structure to the left before heading down the
    alley.
    
    There's bound to be an ambush here; stay sharp. The door leading to the
    building on the right is all open; why not peek in there for the hell of it (if
    it's even open)? Of course, the way forward is still outdoors leading towards
    the broken bridge. Turn right and search the warehouse to the right (it often
    contains a few heavy Weapons!).
    
    Head on the rocky shores towards another set of buildings. Head into this
    warehouse for additional supplies. There's a road that will guide the Survivors
    directly to their next destination, but that's no reason to forsake any supply-
    searching! Head into the split-level building ahead.
    
    There's a lot of Cars AND boats parked here! The main road is blocked off by a
    nasty-looking wall of fire. It's a good enough of an excuse to cut through the
    buildings which may include more precious supplies!
    
    ---------------
    One Way Passage
    ---------------
    
    On the other end, the Survivors will be able to hop down onto the lower field
    to the left. Next to the burning flare is a set of Weapons and Ammunition.
    Don't forget to check the building to the left!
    
    Great. The only way past this train wreck is directly through that totally
    suspicious-looking biohazard boxcar. It has a Tank inside too! Plus, opening
    this scary door will alert the Horde! Prepare for the worst. Have a Molotov on
    hand, or get some explosive cans in place if they exist.
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    Ready? Opening the door requires dedicated concentration for a few seconds, so
    get ready to run away! A Pipe Bomb can be used to divert the Infected while the
    Survivors light that Tank up! When the Tank is slain and the Hordes ceased, get
    through the messy boxcar.
    
    Navigate through the corridors made up of more boxcars, and head to the open
    field. Check the building to the right. The way to the next area is through the
    labyrinth of bricks. There's likely a few more supplies in the corners of the
    maze. At the end of this maze is the entrance to a much larger warehouse.
    
    Run down the mound towards the lantern (likely a few more Weapons here too).
    Head right and upwards to get around the obstacles. This path will lead to
    another portion of the warehouse containing various holding cells. Check the
    building-within-a-building before heading around the cells.
    
    The Safe Room is located at the opposite end of this building. Enter and
    embrace.
    
    **********
    *Survival*
    **********
    
    It's not really all that different from a typical Campaign event, except that
    the hordes will never end (surprise surprise). Also, a Tank will NOT come out
    from the boxcar when the action starts, but from everywhere else. Note that the
    boxcar cannot be used as cover. Any corner will do, but all the Supplies are
    located directly in the middle of the arena.
    
    ----------------
    3.62 >The Barge<
    ----------------
    
    Difficulty: Hard.
    Crescendo Event: Gravel Birds.
    Unique Panic Events: Alarm Car.
    Safe Room Inventory: Submachine Gun, Pump Shotgun, Pistol, 4 Health Kits, Ammo
    Cache.
    
    Francis hates Fish.
    
    The Survivors are still unsure of going to an island in the middle of nowhere.
    Head out of the warehouse and check the red container straight ahead. After
    that, head to the right and get through the gap in the fence.
    
    Go right (literally) around the lake, and check the shack. Keep going forwards
    and then head through the gap in the fence leading towards the garage. Head
    through it, grabbing anything of value, and head into what looks like an
    office.
    
    ---------------
    One Way Passage
    ---------------
    
    It's a little easy to get lost here! However, the way forward is through the
    window on the second floor. Bust it open and hop out. Advance through the auto
    yard. Straight ahead is another building, meant to hold supplies of course!
    
    When finished with this building, go out the window to the shoreline. This
    isn't the boat our Survivors aren't going to take, obviously. Hop on it to get
    through this lake faster (yes, that's right). Get out of the water as quickly
    as possible to the other end of the lake. Navigate through the gravel mounds
    to a building. Enter and deplete this building of its resources.
    
    Ahead is a street with buildings side-to-side. Check them all before heading
    into the field of what appears to be fossil fuels. Stay away from that Alarm
    Car!
    
    Smack-dab in the middle of the field is a structure that holds a First Aid
    Station. Make good use of it! There's a shack somewhere in this field as well.
    See that mountain of gravel? That's the way to go!
    
    ----------------------------------
    Crescendo Event! Prepare to fight!
    ----------------------------------
    
    SHADDAP YOU GODDAMN BIRDS! Too late. They've already attracted the Horde again.
    Try to head across the transfer tube as quickly as possible towards the barge.
    Of course, the tube makes a great holding point for this event (except for
    those Left 4 Dead 2 players!).
    
    ---------------
    One Way Passage
    ---------------
    
    When the storm has calmed, jump onto the barge. There may be supplies in the
    holding pens below, but the Survivors must head to the bow (front) of the
    vessel to win the mission. There's a bunch of welcome supplies in the front, as
    well as a safe landing point onto a bridge of gravel.
    
    Walk across the "bridge" and jump onto the mainland. There's a gun here if
    anyone's interested. Hop on to the crates over this fence.
    
    ---------------
    One Way Passage
    ---------------
    
    Check this area of buildings and roads for more supplies. The Safe Room is in
    that garage across from the entrance. Get in there!
    
    ------------------
    3.63 >Port Finale<
    ------------------
    
    Difficulty: Insane!
    Crescendo Event: Bridge Generators.
    Unique Panic Events: None.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, 4
    Health Kits, Ammo Cache.
    
    Francis hates islands.
    
    Grab all the gear in this Safe Room and head through the alleys, and through
    the buildings.
    
    Welcome to Rayford! Left 4 Dead 2 players may recognize this area at once. It's
    not as colourful as when they "first" visited it! There aren't any Fuel Cans
    here. Instead, there's a trio of Generators that power up the bridge.
    Fortunately some of the supplies remain in familiar places; four Health Kits
    are placed on the table next to the Generator closest to the bridge, as well as
    some Weapons on another.
    
    The other two Generators are located in the warehouse and at the outskirts,
    respectively. Those who may want to push their luck will want to activate all
    three at once! Unfortunately, doing so will each alert a Tank! Don't activate a
    single Generator until everybody has their pockets filled with supplies!
    
    Francis hates suicide missions.
    
    -------------------------
    Finale! Prepare to fight!
    -------------------------
    
    Hold out every time a Generator has been activated. Fight off the Tank and
    hordes. Each Generator has a set of supplies near it, so use those locations as
    camping spots. Eventually, no more hordes will come (provided that the previous
    hordes and Tank has been destroyed), so advance to the next Generator. If the
    Survivors are planning to activate all three Generators at once, camp near the
    bridge, as it's a nice location to hold out against the Tanks.
    
    When enough Tanks have been slain, jump onto the bridge and head up the ladder
    to the switch that will raise the bridge for good! The Survivors are going to
    make it-
    
    Ah hell! The power ran out! The only way to restore it is to reactivate the
    Generator just beside the warehouses! Someone will have to go in there and do
    it! The rest of the Survivors should give the courageous one covering fire
    (there's a Machine Gun planed on the catwalks) long enough for them to do their
    task. A Pipe Bomb will work greatly here. The Survivor must hold the button
    long enough for the Generator to restart and-
    
    Are those a bunch of boulders heading towards that Survivor?
    
    NOOOOOOOOOOOOOOO!!!!!! Now there are only three Survivors! The brave one will
    not be forgotten...
    
    **********
    *Survival*
    **********
    
    At least the Survivors will die together in peace. There's plenty of rooms
    where the Survivors can hold out, all of them containing plenty of Supplies.
    The switch on the wall next to the bridge will start the violence. Consider
    moving from room to room to make maximum use of the Supplies.
    
    =====================
    3.70 >The Last Stand<
    =====================
    
    Tagline: "It doesn't end well."
    Objective: Hold out as long as possible.
    Location: Outside Riverside.
    Setting: Forest.
    Rescue Vehicle: None.
    
    The Last Stand never has a happy ending, since the Survivors always get
    themselves killed in Survival Mode. This campaign is speculated to take place
    after "Death Toll" in an alternate universe.
    
    ---------------------
    3.71 >The Lighthouse<
    ---------------------
    
    Difficulty: Insane!
    Crescendo Event: Generator.
    Unique Panic Events: None.
    Safe Room Inventory: Assault Rifle, Auto Shotgun, Hunting Rifle, Pistol, lots
    and lots of Health Kits, Grenades, Pistols, and Explosive Cans.
    
    Francis hates non-canon speculation.
    
    The generator is located in the lowest part of the lighthouse building. Places
    to hide include the top of the lighthouse, or in one of the rooms.
    
    As always with Survival mode, be sure to prepare before triggering the
    generator. This includes planting traps around where the Survivors plan to
    hide, and grabbing supplies that are far away from the same position. Try to
    monitor each and every entry way, and when a Tank comes, focus fire on him. Gas
    Cans and Molotovs work wonders against Tanks.
    
    ================
    4.00 >More Tips<
    ================
    Here are more tips that apply to every one of these Campaigns, since what will
    occur during those times are extremely likely to occur.
    
    -------------------
    4.01 >General Tips<
    -------------------
    These are just some general tips to being a good Survivor.
    
    -Don't hesitate to explore certain areas for extra supplies, but don't fall too
    far behind! This is especially important in Versus mode.
    
    -Don't waste ammo. Unlike most of Valve's shooter games, the enemies here don't
    drop weapons.
    
    -Aim for the head.
    
    -While reloading, shoving doesn't interrupt the reloading process. Climbing a
    Ladder does.
    
    -In Versus and Survival, the Survivors can only shove so much until they get
    tired (in this case, they'll have to wait a second before shoving again).
    
    -The more powerful weapons can penetrate through thin walls (this is effective
    against Boomers).
    
    -A dead Survivor will drop his or her items, so use them if necessary.
    
    -It takes a minute for a dead Survivor to respawn in a Closet after dying.
    
    -The Flashlight is directly attached to the Weapons, so reloading or shoving
    will decrease the efficiency of the Flashlight.
    
    -Enabling subtitles helps greatly.
    
    -Is there hardly any Infected wandering around here? A Boss Infected is likely
    to be ahead!
    
    -In Expert mode, a Survivor may be better off dying if he/she is low on Health
    and the Survivors are near the end of the level. A resurrected Survivor will
    start off with 50 points of Health!
    
    -Those who rush, die.
    
    -----------------------
    4.02 >Working Together<
    -----------------------
    One of the most important aspects of Left 4 Dead is teamwork. Don't even dream
    that the name of this game is related to proper tactics here.
    
    -Microphones are extremely useful in transferring vital information on the
    battlefield. This includes a zombie-infected battlefield, so don't be afraid to
    use the microphone for any means of communication when the need arises.
    
    -Be sure to stick with at least one other Survivor, in case a Smoker or Hunter
    drops by. Never go off into hostile areas alone!
    
    -When in front, stay out of the line of fire from other Survivors. Crouching
    helps a bundle.
    
    -If the situation looks too convoluted to use bullets when crowded, shove away
    those Infected to prevent any friendly-fire incidents.
    
    -Who needs Health? There's the person who is low on Health, the one who only
    has temporary Health, and there's the individual who ran out of first aid
    supplies.
    
    -Bullets and Grenades will hurt Survivors. Shoving doesn't.
    
    -Try not to leave any Survivors behind. Try not to let any Survivors die
    either.
    
    -Pick a Weapon that none of the other Survivors have. Having a Shotgun or a
    Sniper Rifle in a team of riflemen can greatly benefit the team in various
    ways.
    
    ------------------
    4.03 >Versus Tips<
    ------------------
    Versus is much more different from Co-op, and it's much more terrifying. While
    it uses the many factors of Normal difficulty, it should be treated as Expert.
    
    -Be sure to know the terrain of the level before doing it on Versus. Nothing
    can jeopardize a team more than a lost Survivor.
    
    -Whoever slows down behind is often left behind.
    
    -Survivors cannot be rescued after they are killed.
    
    -No matter what happens, stay together! Should the team split up, split up in
    groups of two.
    
    -The Infected like to ambush Survivors when they are using their Health Kits.
    
    -Due to the quicker pace and constant moving, Shotguns are usually a good pick.
    Avoid using the Hunting Rifle except in Finales.
    
    -Keep moving from room to room.
    
    -----------------------
    4.04 >Against Infected<
    -----------------------
    The biggest enemy of the Survivors is, of course, the hordes of Infected.
    
    *****************
    *Common Infected*
    *****************
    
    -See any dawdling zombies? Shoot them with the Pistol so that they cannot
    attack the Survivors later on.
    
    -Pipe Bombs work extremely well against Common Infected, whether if it's in the
    middle of a Crescendo/Panic Event, or when clearing out a room full of
    Infected.
    
    -Molotovs also kill Common Infected very quickly. If an Infected is on fire, it
    is harmless and will die soon. Molotovs are useful when trying to massacre some
    Infected that run through a certain choke point.
    
    -Only use primary Weapons on them if they're too numerous to be taken out with
    Pistols.
    
    -If a limb falls off an Infected, it's dead. Hunting Rifles will always kill
    Common Infected in a single shot.
    
    -Don't be afraid to shoot any Infected attacking another Survivor's back.
    
    -Jumping on a zombie's head kills them.
    
    *********
    *Hunters*
    *********
    
    -Always stay with another Survivor upon hearing or seeing a Hunter.
    
    -Hunters will growl when they are about to pounce. They are completely silent
    otherwise.
    
    -Hunters scream when they pounce.
    
    -A burning Hunter will deal more damage when pouncing.
    
    -Try shoving a Hunter away when it is in the air to disorient it. Extra points
    for shooting it in mid-air!
    
    -If a Hunter is on a Survivor, knock him off, and kill him!
    
    -A Hunter can easily be bludgeoned to death.
    
    -Hunters look a lot like Common Infected when walking and running. Watch for
    the ones proactively jumping and running.
    
    *********
    *Smokers*
    *********
    
    -As with Hunters, pick a Survivor to stay close by upon noticing a Smoker.
    
    -When spotting a Smoker screaming, take cover so that it will have to catch up.
    Then strike!
    
    -Smokers are often seen in the distance. They leave green spores around the
    areas they recently have been standing in for a couple of seconds.
    
    -If a Smoker is pulling a Survivor, shoot the Smoker, its tongue, or knock the
    Survivor off the tongue. Even resort to shooting at the Survivor if necessary!
    
    -If a Smoker failed to grab a Survivor with its tongue, approach it and shoot
    it! This is guaranteed kill.
    
    -A Survivor only has a second to react when being pulled by a Smoker before
    losing control.
    
    *********
    *Boomers*
    *********
    
    -If the Boomer is trying to hide, try finding its large belly.
    
    -When a Boomer is close, shove it away, and shoot it (make sure no other
    Survivors are near the Boomer when this happens).
    
    -When vomited on, try not to panic, and shove away at any Infected until the
    slime clears up.
    
    -If the Boomer vomited on another Survivor, use a Pipe Bomb to draw away the
    new Horde. Take advantage of the fact that the Horde is going after the slimy
    Survivor, so don't be afraid to get in the way and fight dirty!
    
    -Protect any Survivors that are vomited on by Boomers.
    
    -Try shooting through walls if a Boomer is attempting to hide.
    
    *******
    *Tanks*
    *******
    
    -Listen for angry growling and snarling. Tanks do that.
    
    -Stay away from cars, furniture, and other large objects when the Tank is
    around and about.
    
    -Light him on fire as soon as possible! Fire can make a considerable
    difference! However, try not to throw a Molotov at him when other Survivors are
    close to him (fire can hurt Survivors too).
    
    -Tanks are faster when on fire in Co-op and Survival modes, but slower in
    Versus.
    
    -When a Tank's climbing, he's vulnerable to any sort of attack. Same goes for
    when he's throwing rocks.
    
    -When a Tank's throwing a rock, try to dodge the rock and stay away from the
    front of the Tank. Find cover as soon as possible.
    
    -Auto Shotguns, Hunting Rifles, and Miniguns are the best kinds of weapons
    against Tanks. Assault Rifles and even Pistols can do their share of damage
    against Tanks as well.
    
    -If the Tank is on fire, try running away from him, and hope that he dies of
    attrition (and the burning).
    
    -Beware of Special Infected when dealing with a Tank.
    
    -Tanks do not receive extra damage from headshots.
    
    -A crouching Tank is extremely slow. Take a few cheap shots at him when this
    happens!
    
    *********
    *Witches*
    *********
    
    -A Witch can be heard sobbing a mile away. Upon hearing her, shut off those
    Flashlights!
    
    -Even in the darkest areas, Witches are still visible due to a red glow around
    her.
    
    -Tell any allies of her location.
    
    -Avoid going near her at all costs.
    
    -If she's in the way of an important path, try sneaking around her. Don't get
    too close!
    
    -If the Witch is getting angry, leave her be for a few seconds, and wait for
    her to cry again.
    
    -Shotguns are the only weapons that can kill a Witch in a single shot. Approach
    her from behind and start shooting when as close as possible! Cr0wning a Witch
    often prevents her from being startled in the process.
    
    -For Auto Shotguns, shoot her at once! Don't stop pressing that trigger!
    
    -For Pump Shotguns, it's a lot harder. Shooting her once will cause her to
    scream. While she's doing so, shoot her again. Hopefully she hasn't moved when
    screaming!
    
    -Try burning a Witch. This will slow her down and hurt her.
    
    -If a Witch is startled by someone, and then lit on fire by somebody else,
    she'll start going after whoever lit her on fire!
    
    -If someone gets enough in the way of the Witch's path to the one who startled
    her, she'll attack whoever's in her way! Watch out!
    
    -The Survivor who startled the Witch should run away immediately. Everyone else
    should shoot at her before she can get at the Survivor.
    
    -She can also be startled from a distance with the Hunting Rifle. Fast as she
    is, a distance long enough should provide the Survivors some time to kill the
    Witch on her trip.
    
    ------------------
    4.05 >As Infected<
    ------------------
    In Versus mode, players are split into two teams. Both teams will have to play
    as the Infected at one point or another. Most of the time, the Infected team
    will consist of two Hunters, one Smoker, and one Boomer (with the occasional
    Tank).
    
    *********
    *General*
    *********
    
    -Lonely Survivors are excellent targets for Infected, the same applies to
    incapacitated Survivors and stragglers.
    
    -Prioritize the weaker Survivors first (they are outlined in red).
    
    -Try working together with other Infected.
    
    -Try luring the Survivors to Alarm Cars and Witches.
    
    -If there is a spot where the Survivors cannot go back (like holes), try
    attacking the last Survivor to make it through that point (the other Survivors
    can do little to help the victim).
    
    -Try not to spawn too early. Noises will cause the Survivors to get all jumpy.
    
    -Think of the worst times a Special Infected can appear as a Survivor.
    
    -Special Infected cannot trigger Alarm Cars.
    
    -Smash any Doors to bits.
    
    -Survivors are defenceless when climbing ladders.
    
    The ideal positions of the Infected are as follows:
    
    Front                                      Rear
    -----------------------------------------------
    Hunter----Boomer---------Survivors-------Smoker
    -----------------------------------------------
    
    -If a helpless Survivor is about to be rescued by others, attack the rescue
    party!
    
    ********
    *Hunter*
    ********
    
    -Crouch, then fire in order to pounce. Wait for the Infected meter to fill up
    before leaping.
    
    -Pouncing from high areas will cause more damage (if the Hunter actually
    manages to pounce the Survivor on his first leap).
    
    -Pouncing can also be used for long-jumping and high-jumping.
    
    -Upon being pryed away from a Survivor, run!
    
    -Survivors covered in Boomer vomit are suitable targets.
    
    -If a Smoker is pulling a Survivor, pounce anyone trying to save the victim.
    
    -Or just pounce the victim to let the Smoker pull a different target.
    
    -Pouncing alone deals quite a bit of damage when done right. Aim a little
    higher than the Survivor.
    
    -When pouncing from high areas, try not to miss the Survivors to deal damage
    on the first pounce.
    
    -The Hunter is the only Infected capable of attacking an Incapacitated Survivor
    with his ability (other than the Boomer).
    
    Here's a tip from an anonymous contributor:
    
    "Stealth is a priority when being a Hunter. You should sneak up to survivors
    and pounce them, it may cause panic and allow other infected to attack and get
    a lead on attacking."
    
    Here's another tip from [AoEW]Raiden777:
    
    "As a Hunter, always try to light yourself on fire, you can incap a Survivor
    from 80 hp in 5 seconds (give or take a bit)."
    
    ********
    *Smoker*
    ********
    
    -Select a Survivor to pull, aim, and then fire (the crosshairs will turn red if
    the Smoker is able to pull the Survivor).
    
    -If the Smoker misses, he'll have to wait a few seconds before firing again.
    
    -If the Smoker is repelled, he'll have to wait a few moments before firing
    again.
    
    -High points are the Smoker's favourite locations to visit.
    
    -Try pulling Survivors towards a ledge, or towards Alarm Cars/Witches.
    
    -Work with Boomers, so that the Boomer can vomit on the Survivor once the
    Survivor's close enough to the Smoker.
    
    -Pull Survivors downward. Fall damage counts too when using a Smoker.
    
    -Incapacitated Survivors cannot be pulled.
    
    -Attack from long-range.
    
    ********
    *Boomer*
    ********
    
    -When close enough to the Survivors, aim and vomit! The Boomer will have to
    wait a long time before he can vomit again.
    
    -If the Boomer manages to live after vomiting, run away! Try to vomit on the
    Survivors a second time.
    
    -Tight corners are suitable areas to ambush the Survivors.
    
    -Feel free to vomit on a pounced, constricted, or downed Survivor.
    
    -A Survivor on a ladder is completely helpless against the Boomer.
    
    -Avoid thin walls.
    
    -The Boomer Bile doesn't overlap, so don't bother trying to explode on a
    Survivor after vomiting on him/her!
    
    -The Boomer can also change the direction he's vomiting to cover more
    Survivors.
    
    ******
    *Tank*
    ******
    
    -Act fast when controlling the Tank! Dawdle too long and someone else will take
    over!
    
    -When someone else controls the Tank, make an attempt to use the Tank as a
    distraction for a sneak attack (or try to help out the Tank in any way
    possible).
    
    -If the Survivors are far away, chuck a rock at them (the Tank can look around
    and aim at a different area while throwing, but cannot actually move).
    
    -Avoid the open, and avoid fire!
    
    -Feel free to toss cars.
    
    -There are some walls in some levels that can be destroyed. The Tank can get a
    good clean ambush this way!
    
    -When a Survivor is incapacitated, move onto the next Survivor and let a Hunter
    or a Boomer finish him/her off.
    
    -Try knocking a Survivor off a cliff.
    
    -Avoid targeting Survivors that are helpless.
    
    -Almost always go for Survivors covered in Boomer Bile.
    
    -Never try to crouch.
    
    ----------------------
    4.06 >Supply & Demand<
    ----------------------
    In a zombie-infested world, the Survivors must make good use of every peice of
    supply they encounter.
    
    -Upon seeing any items, pick them up. Keep track of how many Grenades, Health
    Kits, and Pills every Survivor has in hand.
    
    -Does someone need Pills, and are there any extra Pills lying about? Feel free
    to give some Pills to the needy, and then take the spare Pills on the ground.
    
    -Does everyone have Pills, but there are still extra cases of Pills? Use them
    and take an extra pack.
    
    -See an extra Health Kit? Use it on the most injured Survivor (even if the
    Survivor isn't too badly hurt), or save it in case of a bigger emergency.
    
    -It is rumoured that using Health Kits on others increases the chances of
    finding another in the level than using it on one's self.
    
    -Take a look at the spare item and use the "Look!" voice command in order to
    tell the others that there's an item here. This also applies to Ammo, Weapons,
    and people.
    
    -Upon receiving Pills from another Survivor, it's not always mandatory to
    consume them right away (in fact, it's quite rude if the Survivor doesn't
    really need to do it at all).
    
    -------------------------
    4.07 >Environmental Tips<
    -------------------------
    The world of zombies is a hostile place. However, there are some parts of the
    world that the Survivors can use to their advantage.
    
    -Close any Doors upon passing through or by them. This will slow down any
    Infected trying to pursue the Survivors.
    
    -Shoot through Doors to create a hole in them, allowing the Survivors to open
    fire on the Infected (don't damage the Door too much though, it can break).
    
    -Corners are effective places to hide during a Panic or Crescendo Event.
    
    -During Panic or Crescendo Events, Survivors can use choke points to gain the
    advantage against Infected. Choke points include narrow hallways, rooms with a
    single entrance, or high areas with only one place to get to there. Beware of
    Smokers!
    
    -ALWAYS stay away from Alarm Cars and edges.
    
    -Try to reload before or after climbing a ladder.
    
    -When going through a part in the campaign where the Survivors cannot go back
    to (like a hole), make sure everyone passes through safely. Don't go through
    such a passage alone either.
    
    --------------------
    4.08 >Survival Tips<
    --------------------
    In Survival mode, the rules change quite drastically. Even though the Survivors
    WILL get killed by the massing Infected, it is still important to live as long
    as possible.
    
    -Take plenty of time to decide where to stay and plant traps (Gas Cans, Propane
    Tanks, etc).
    
    -Shotguns and Hunting Rifles are usually the better Weapons, due to their
    higher carrying capacities (unless the area to stand has an Ammo Cache).
    
    -If there is an Ammo Cache nearby, use Assault Rifles.
    
    -Use Pistols against Common Infected, and use Primary Weapons versus Special
    Infected and Tanks.
    
    -Fire is a precious asset against Tanks.
    
    -If a Tank is absent, staying in one place is an effective tactic.
    
    -When a Tank arrives, try to displace and scramble! Auto Shotguns work wonders
    against Tanks. Tanks have less health in Survival Mode, but that doesn't make
    them a lesser threat!
    
    -Hunting Rifles also can deal loads of damage against Tanks from a distance.
    
    -Most of the time, stay together. When a Tank comes, displace!
    
    -Smokers and Hunters are top priority targets aside from Tanks.
    
    -A crazier idea is to gather all the Explosive Cans and store them where the
    Survivors plan to hold out. Throw a Gas Can whenever a Tank comes by. Be sure
    not to blow up the Cans in the crossfire!
    
    -----------------------
    4.09 >Achievement Tips<
    -----------------------
    Some people are willing to put their lives on the line to get every single
    Achievement in the game (well, maybe not like that).
    
    ------------------
    Campaign (Instant)
    ------------------
    These can be obtained in any Campaign (except the Crash Course specific ones),
    and in any game mode.
    
    101 Cremations:
    If a Horde is on its way through a choke point, it's the perfect place to throw
    a Molotov!
    
    Back 2 Help:
    If someone unlucky happens to be Incapacitated near the Safe Room, enter it,
    then leave and bring the Survivor back to their feet.
    
    Barrel Rolled:
    If a Special Infected is near a Barrel, take the chance and shoot it!
    
    Blind Luck:
    If vomited on, be sure to retreat into a Closet for maximum success.
    
    Brain Salad:
    Just aim for the damn head.
    
    Burn the Witch:
    Throw a Molotov at a Witch. This will slow her down. Try to prepare for her
    wrath!
    
    Clean Kill:
    Shoves don't damage Boomers too much. He can be shoved until he's far away from
    the Survivors.
    
    Cr0wnd:
    Grab an Auto Shotgun and approach the Witch carefully from behind. When close
    enough, start shooting at once!
    
    Dead Giveaway:
    If there is a spare Health Kit lying around whilist at low Health, ask the
    Survivors to wait and heal one of them. Then take the extra Health Kit and use
    it to replenish the staggering Health.
    
    Dead Stop:
    Try to anticipate when the Hunter will reach its target. Or just keep swinging
    blindly.
    
    Drag and Drop:
    Kill the Smoker or Shove the Survivor quickly.
    
    Field Medic:
    Make sure every single spare Health Kit is used!
    
    Ground Cover:
    Try shooting a Hunter attacking another Survivor when down. Or try shooting a
    Smoker doing the same.
    
    Helping Hand:
    Simply have a caring heart and help Survivors back on their feet.
    
    Hero Closet:
    Rescue anyone trapped in Closets. They will have an orange outline.
    
    Hunter Punter:
    Just smack a Hunter and then fill him up with lead!
    
    Jump Shot:
    A Hunting Rifle can be used to shoot a Hunter in mid-air.
    
    Man VS Tank:
    A single Molotov can burn a Tank to death. If a Horde is coming while a Tank is
    raging, focus on the Horde and get away from the Tank (I got this in the Mercy
    Hospital).
    
    My Bodyguard:
    Have a heart and kill off Infected attacking Survivors.
    
    No One Left Behind:
    Make sure nobody gets themselves heavily damaged during a finale.
    
    No Smoking Section:
    Everyone hates Smokers! This should be an easy task.
    
    Pharm-Assist:
    Note that the Survivor must also use the Pills in order to progress through
    this Achievement.
    
    Pyrotechnician:
    Use a Pipe Bomb during a Crescendo or Panic Event. Done.
    
    Red Mist:
    Wherever there is a Minigun, use it.
    
    Spinal Tap:
    Sneak up and kill a sitting Infected.
    
    Tankbusters:
    If everybody has a Hunting Rifle or Assault Rifle, they can pour it onto the
    Tank from a distance without getting hurt (dodge any Rocks!).
    
    Tongue Twister:
    Act fast. Face a Smoker, let his tongue loose, and then shoot him immediately.
    
    Towering Inferno:
    Get into the habit of lighting Tanks on fire!
    
    Witch Hunter:
    Cr0wning also works. Just don't let anybody get hurt by the Witch.
    
    Zombie Genocidist:
    Just play Left 4 Dead over and over and over.
    
    ----------------------------------
    Campaign (Instant, Level Specific)
    ----------------------------------
    
    Chaos Generator:
    Simply have all three Generators running at once by simultaneously activating
    them. Be prepared to face multiple Tanks! Of course, the Survivors don't have
    to live through this...
    
    Quick Power:
    A Pipe Bomb can lure the Infected away, turning the tables immensely.
    
    Tank Stumble:
    Propane Tanks are the way to go here. Pipe Bombs also work.
    
    The Littlest Genocide:
    Play Crash Course over and over and over.
    
    ------------------------------
    Campaign (Campaign Completion)
    ------------------------------
    These can only be obtained in official Campaigns. Try to do them on Crash
    Course unless specified otherwise.
    
    Mercy Killer, Crash-Proof, Toll Collector, Dead Baron, Grim Reaper:
    Just complete the Campaigns on any difficulty. Be sure to survive and play
    through the entire Campaign for maximum success.
    
    Supreme Sacrifice:
    Man up and be the one who takes the heroic sacrifice!
    
    Akimbo Assassin:
    Do not use Primary Weapons or Miniguns. Grenades are OK.
    
    Do Not Disturb:
    It's best not to try Cr0wning every single Witch either. However, Cr0wning can
    kill a Witch without "startling" her.
    
    Kill Bill:
    Play as Bill in "The Sacrifice". Poor guy...
    
    Nothing Special:
    This is a hard one! Avoid Special Infected at all costs! And try to be careful
    around Boss Infected!
    
    Safety First:
    Do this in Single-Player, and use the Hunting Rifle. Bots don't do friendly
    fire.
    
    Stand Tall:
    Try not to get hurt. That is all.
    
    Stomach Upset:
    Do not get covered in Boomer Bile. Try not to play with trigger-happy allies.
    
    Unbreakable:
    Best done on Easy. Use Pills to restore Health whenever needed, and avoid
    playing with Bots. Take out the Health Kit to prevent Bots from making a
    selfless healing.
    
    Untouchables:
    This one's glitched.
    
    What are you trying to prove?:
    Conquer all the long Campaigns on Expert! Salute those who got this
    Achievement!
    
    Zombicidal Maniac:
    Conquer a Campaign on Expert!
    
    ------
    Versus
    ------
    These can only be obtained on Versus mode.
    
    20 Car Pile-Up:
    Whenever playing as the Tank, find a Car at once. Dumpsters also count.
    
    All 4 Dead:
    Survivors can be instantly Incapacitated from Cars. All the Survivors only need
    to be at least Incapacitated in order for this to count. Make sure nobody else
    Incapacitates the other Survivors.
    
    Barf Bagged:
    If the Survivors are corner-camping, now is the best time to strike!
    
    Big Drag:
    This is a hard one. Try to spawn far away from the Survivors, and spawn high on
    rooftops. The distance counted towards this Achievement also include falls.
    
    Chain Smoker:
    If somebody escaped from the Smoker, retreat, and try to pull one of the
    Survivors again. It doesn't have to be the same Survivor.
    
    Dead Wreckening:
    Just keep playing Versus over and over and over.
    
    Double Jump:
    When Shoved as a Hunter, leap to retreat, then attack the Survivors again.
    
    Jumpin' Jack Smash:
    Not easy. Stick to the rooftops. Jump at a 45 degree angle at the Survivors,
    and try to land on them on the first pounce!
    
    Lamb 2 Slaughter:
    If someone decided to rush, teach them a lesson if they ever get out of the
    Safe Room!
    
    Outbreak: 
    Simply get puked on by Boomers.
    
    Sacrifizzle:
    When the bridge is going up, take position and ambush whoever goes off first!
    
    Slippery Pull:
    See any Bile-covered Survivors? Pull them.
    
    Smash Hit:
    "Simply" win a Versus game of Crash Course. Try to play on Local Servers for
    maximum success.
    
    Truck Stop:
    Wait outside the back of the Truck. A Tank can easily kill off the Survivors.
    
    Wipefest:
    Work together to synchronize Incapacitation. Hunters and Smokers work well. A
    Tank can instantly Incapacitate Survivors by throwing large objects.
    
    --------
    Survival
    --------
    These can obtained in Survival Mode. Keep in mind that in order to obtain
    Medals, be sure to wait until the round is reset after the Survivors have lost.
    
    Bronze Mettle, Silver Bullets, Violence is Golden:
    Just keep playing until these Medals are achieved.
    
    Distinguished Survivor:
    Keep going around every map, obtaining at least a Bronze Medal.
    
    Heroic Survivor:
    Work with a decent team in order to obtain a Silver Medal on each stage.
    
    Legendary Surivvor:
    Work with the best Survivors! Have only the best game plan!
    
    Last Stand:
    Simply get a Medal on the Last Stand.
    
    ------------------------------
    4.10 >Custom Campaigns & Maps<
    ------------------------------
    Although these aren't tips, there are many Campaigns made by fans of Left 4
    Dead (I thought it would fit better near the end of this guide rather than the
    beginning). Many of these campaigns can be downloaded off of left4deadmaps.com,
    or they can be downloaded through the link provided by the game upon attempting
    to enter a game using a custom campaign. This is a (partial) list of "Complete"
    maps.
    
    To obtain these Campaigns, simply download the vpk file, put it somewhere safe,
    and then click on the file. The file will automatically download itself into
    the game.
    
    ------------
    Blood Orange
    ------------
    The world being nothing but orange and grey textures, the Survivors must get
    through this simplistic world and head to the safety tower. How much orange can
    they take? 5 levels long. By Irish Taxi Driver.
    
    ------------
    Coal'd Blood
    ------------
    Feeling a bit down? The Survivors should be, as they trek down an abandoned
    mine with loads of Infected on the way! They must get to a bunker on the other
    side of the mines and summon a helicopter to get out. 4 levels long. By Hunter
    McJesus.
    
    ----------
    Dark Blood
    ----------
    There's no land-lubbing in this Campaign! The Survivors must fight through the
    giant vessel all the way to the top, where they will signal a helicopter to
    escape. 4 levels long. By Castor Judo.
    
    ------------
    Death Aboard
    ------------
    Aye, mateys! This campaign mostly be taking place in an abandoned barge, along
    with a jail cell and a city next to the big sea! The only way out of this beach
    is through a hot-air balloon! 5 levels long. By Diputs.
    
    ----------
    Death Stop
    ----------
    What would happen if the Slaters' boat crashed? The Survivors would have to
    keep moving out of Riverside to the main road. There, they'll be able to
    contact the military. 4 levels long. Made by Draxonfly.
    
    -------------
    Die Screaming
    -------------
    Battle through a generic town that includes a subway train, a deep hole, and a
    graveyard. 5 levels long. By Soup Toaster.
    
    ----------------
    I Hate Mountains
    ----------------
    Francis hates mountains. The Survivors will need to climb their way through the
    highlands to the lake. In between them and the evacuation station is a mansion,
    an abandoned mine, and a lumberyard. 5 levels long. Made by the I Hate
    Mountains team.
    
    ------------
    Night Terror
    ------------
    Truly spooky! This campaign contains numerous references to other works, such
    as the haunted house from Disney World, plus a trip through the Mines of Moria!
    The book in the tomb may require more time to read than one may think, and the
    Tanks in that area are best avoided! 5 [tough] levels long. By Nipper & Dr.
    Boo.
    
    ----------
    One 4 Nine
    ----------
    Not long ago, the military uncovered a mysterious alien tome, and have
    attempted to find more about it non-stop. The Survivors heard there was a safe
    zone in the base holding the artifact. 4 levels long. By Kev Edwards.
    
    -----------
    Precinct 84
    -----------
    Even though Francis still hates Cops, the Survivors are keen on getting to the
    town's police station in hopes of a means of rescue (especially after a nasty
    helicopter crash). Features a fully-functioning Scavenge Finale! 4 levels long.
    By Keldorn.
    
    -------------
    Suicide Blitz
    -------------
    Another city! This one has a gigantic football stadium, along with a large
    sewer system, a working train, and lots of Infected. 5 levels long. By RT
    Frisk.
    
    --------------
    Vienna Calling
    --------------
    Willkommen to Austria! Or, at least, what's left of it after the Infection. It
    seems that it's not limited to North America! The Survivors must battle their
    way through this enormous city to a factory district for extraction! 5 [large]
    levels long. By 44Vmapping.
    
    ===================
    5.0 >And the Rest!<
    ===================
    All of this will cover up the rest of the guide.
    
    ===========
    5.1 >F.A.Q<
    ===========
    
    Q: Where else can I get Left 4 Dead tips?
    A: Left 4 Dead Wiki is an excellent place to get information.
    
    Q: How do I get the Crash Course and The Sacrifice campaigns?
    A: The PC version receives these campaign automatically (due to Steam), but
    Xbox users must pay a small price for this add-on.
    
    Q: How do I download custom Campaigns for the Xbox version?
    A: Custom Campaigns are only for the PC version. Consider getting the PC
    version next time!
    
    Q: Do I need the disk to play the game every time?
    A: No. This game runs through Steam; all that's required to play is a Steam
    account and an internet connection.
    
    Q: What's your Steam account name?
    A: My Steam Account can be found here:
    
    http://steamcommunity.com/profiles/76561197964001631
    
    My Steam nickname is RainingMetal. Be sure to email me if you plan to be
    friends with me!
    
    Q: I only want to get a certain part of this guide! What can I do?
    A: Select what's necessary and then right click and click on copy (or select
    and then press control C). Then go to some other word document, right click,
    and paste (or press control V). Print away!
    
    Q: I want to contribute to this guide by writing some information for it!
    A: Go right ahead. E-mail me at boocatcher5(@)hotmail(.)com (omit the
    brackets).
    
    Be free to e-mail me some more questions. Rules for it are explained below.
    
    
    =================
    5.2 >Email Guide<
    =================
    
    Here are some ground rules for sending me e-mails.
    
    1. Spell correctly with good grammar.
    
    2. Donít ask something thatís already inside this guide.
    
    3. Try to make your strategy neat, because I will directly take your strategy
    from your E-mail. Also, pressing enter at the end of each line would help.
    
    4. Donít forget about the subject (Left 4 Dead)! Then I will know what the
    topic is about.
    
    5. Don't ever try to contact me through a messenger program. Ever.
    
    6. If there's an error or a vital note for the guide missing, please inform me
    of it immediatley.
    
    7. If you're going to criticize my guide, please leave some constructive
    criticism.
    
    8. Don't forget to leave your nickname so that I can put it on the credits!
    
    Just give me these things if you want to contact me about the guide.
    
    1. Strategies on incomplete stuff.
    
    2. Additional FAQs.
    
    3. Notable glitches.
    
    4. Other stuff to make this guide interesting.
    
    Here's a list of things not to send me (I will block whoever sends me the
    following):
    -Spam
    -Death Threats
    -Invitations to Facebook, Myspace, any kind of blogging websites (because I
    never use them)
    
    ------------------
    5.3 >Website List<
    ------------------
    This is a list of the Websites that this guide is available to:
    
    -GameFAQs.
    -GameSpot.
    -Neoseeker.
    -MMGN.
    -Cheat Happens.
    -Super Cheats.
    -MyFrag.
    
    =============
    5.4 >Credits<
    =============
    
    -Me, the Author.
    -Left 4 Dead Wiki for giving me vital information on the game.
    -Left4deadmaps.com for the Custom Campaigns.
    -[AoEW]Raiden777 for the Hunter tip.
    -Glass Giant for the ASCII art program.
    -Valve for the game itself.
    -GameFAQs for uploading this guide.
    
    ----------------------
    5.5 >Legal Disclaimer<
    ----------------------
    
    Francis hates copyrights.
    
    Copyright 2011 Brett Sim
    
    This may be not rewritten under any circumstances except for personal, private
    use. It may not be placed on any web site or otherwise distributed publicly
    without permission before so. Use of this guide on any other web site or as a
    part of any public display is strictly, indisputably prohibited, and a
    violation of copyright.
    
    Failure to comply with the above terms can result in a lawsuit.
    
    All trademarks and copyrights contained in this document are owned by their
    respective trademark and copyright holders.
    
    If you wish to get some information from this guide, they must be confirmed and
    chosen by the author, Raining Metal.
    
    If you do not agree with the terms here, you should not use this guide any
    further.
    
    Thank You.