
Elite Unit
Not unlocked yetComplete all single player levels 1-5 on Elite difficulty

Battle-hardened
Not unlocked yetComplete all single player levels 1-5

Seasoned Squaddie
Not unlocked yetComplete any multiplayer level

Exterminator
Not unlocked yetKill 1000 aliens in single player

Immobilised
Not unlocked yetStun 10 aliens with one Stun Grenade

Frag-master
Not unlocked yetKill 10 aliens with one Frag Grenade

The Informed
Not unlocked yetCollect all the logs throughout the game

Survivor
Not unlocked yetStay alive for 8 minutes on any single player Survivor level

Meat Grinder
Not unlocked yetKill 250 aliens on any multiplayer Survivor level

Hidden Treasure
Not unlocked yetFind all secret collectibles

Tank
Not unlocked yetTake 500 damage on 'Determination' single player mission without dying

More Speed, Less Haste
Not unlocked yetComplete 'Vengeance' single player level on Veteran difficulty in 17 minutes or less

Time to Party
Not unlocked yetComplete 3 Co-op Assault multiplayer games