Unlockables

  • Achievements

    Complete each achievement to receive the allotted gamerscore.

    UnlockableHow to Unlock
    Against the Odds (25)Complete single player levels 1-5 on Elite difficulty
    Ain't got time to bleed! (20)Complete 'Interface' single player mission without using a health pack
    Born to Kill (10)Kill a total of 25 aliens in single player
    Break Out the Arsenal (10)Fire every weapon and use every item in single player
    Campaign Veteran (25)Complete all single player levels 1-5
    Elite Force (10)Kill 50 aliens in a row without taking damage in single player
    Fighting Light (20)Complete any single player level without using any items
    Hard to Kill (20)Complete CO-OP Assault level 1, 2 or 3 without either player dying
    Killing Spree (10)Kill 20 aliens within 30 seconds in single player
    Knowledge is Power (20)Collect all the logs throughout the game
    No Stone Unturned (10)Find all secret collectibles
    Team Veteran (20)Complete "Hydroponics" in Co-op Assault

    Contributed By: Guard Master.

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