| Achievement | How to unlock
|
|---|
| - Complete all single player levels 1-5.
|
| - Complete all single player levels 1-5 on Elite difficulty.
|
| - Kill 1000 aliens in single player.
|
| - Kill 10 aliens with one frag grenade.
|
| - Find all secret collectibles.
|
| - Stun 10 aliens with one stun grenade.
|
| - Kill 250 aliens on any multiplayer Survivor level.
|
| - Complete 'Vengeance' single player level on Veteran difficulty in 17 minutes or less.
|
| - Complete any multiplayer level.
|
|
| - Stay alive for 8 minutes on any single player Survivor level.
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| - Take 500 damage on 'Determination' single player mission without dying.
|
| - Collect all the logs throughout the game.
|
| - Complete 3 Co-op Assault multiplayer games.
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