Game Mods are unlocked upon completion of the game, one for each difficulty level. Enabling a Game Mod does not deactivate achievements.
Unlockable How to Unlock Double-Physics (Doubles the force of explosions) Beat the Campaign on Medium Hollywood Mode (Enemies have big heads) Beat the Campaign on Easy Tough Guys (Enhances the health of enemies) Beat the Campaign on Hard
Contributed By: ParaSpartan.
Achievement Description Value Color Me Impressed Complete a mission on Normal without dying, failing, restarting, or continuing campaign 10 Droppin Bombs Call in the airstrike to defeat the Command Center 5 Hummer Kill 15 enemies on the HMV turret 10 Kaboom Destroy the gas station 5 Long Range Kill 20 enemies with a sniper rifle 10 One Hundo Unlock all the unlockables 50 Pool and Dive Survive the pool attack 5 Private Complete the game on Easy Difficulty 15 Rocketman Kill 2 aliens with one Rocket 10 Seen Your Video Watch an unlocked video 5 Sergeant Major Complete the game on Hard Difficulty 50 Staff Sergeant Complete the game on Normal Difficulty 25
Contributed By: Similac.
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