Achievements

Battle-hardened (25G) Single player completed

Elite Unit (25G) Single player completed on Elite difficulty

Exterminator (20G) Killed 1000 aliens

Frag-master (30G) Killed 5 aliens with one Frag Grenade

Hidden Treasure (10G) Found all secret collectibles

Immobilised (20G) Stunned 5 aliens with one Stun Grenade

Meat Grinder (10G) Killed 250 aliens during multiplayer Survivor mode

More Speed, Less Haste (10G) 'Vengeance' completed in 17 minutes or less

Seasoned Squaddie (20G) Completed a level in multiplayer

Survivor (10G) Stayed alive for 8 minutes in Survivor mode

Tank (10G) Took 500 damage without dying

The Informed (10G) Picked up all the logs