Complete 'Vengeance' single player level on Veteran difficulty in 17 minutes or less
Complete all single player levels 1-5 on Elite difficulty
Take 500 damage on 'Determination' single player mission without dying
Collect all the logs throughout the game
Stay alive for 8 minutes on any single player Survivor level
Kill 10 aliens with one Frag Grenade
Complete all single player levels 1-5
Kill 1000 aliens in single player
Find all secret collectibles
Stun 10 aliens with one Stun Grenade