| Achievement | How to unlock
|
|---|
| Battle-hardened | Complete all single player levels 1-5.
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| Elite Unit | Complete all single player levels 1-5 on Elite difficulty.
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| Exterminator | Kill 1000 aliens in single player.
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| Frag-master | Kill 10 aliens with one frag grenade.
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| Hidden Treasure | Find all secret collectibles.
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| Immobilised | Stun 10 aliens with one stun grenade.
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| Meat Grinder | Kill 250 aliens on any multiplayer Survivor level.
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| More Speed, Less Haste | Complete 'Vengeance' single player level on Veteran difficulty in 17 minutes or less.
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| Seasoned Squaddie | Complete any multiplayer level.
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| Survivor | Stay alive for 8 minutes on any single player Survivor level.
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| Tank | Take 500 damage on 'Determination' single player mission without dying.
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| The Informed | Collect all the logs throughout the game.
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| Time to Party | Complete 3 Co-op Assault multiplayer games.
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