Sergeant Major
Complete the game on Hard Difficulty
50 ✓ March 12th, 2011
One Hundo
Unlock all the unlockables
50 ✓ March 12th, 2011
Staff Sergeant
Complete the game on Normal Difficulty
25 ✓ March 12th, 2011
Private
Complete the game on Easy Difficulty
15 ✓ March 12th, 2011
Long Range
Kill 20 enemies with a sniper rifle
10 ✓ March 12th, 2011
Color Me Impressed
Complete a mission on Normal without dying, failing, restarting, or continuing campaign
10 ✓ March 12th, 2011
Hummer
Kill 15 enemies on the HMV turret
10 ✓ March 12th, 2011
Rocketman
Kill 2 aliens with one Rocket
10 ✓ March 12th, 2011
Kaboom
Destroy the gas station
5 ✓ March 12th, 2011
Pool and Dive
Survive the pool attack
5 ✓ March 12th, 2011
Droppin Bombs
Call in the airstrike to defeat the Command Center
5 ✓ March 12th, 2011
Seen Your Video
Watch an unlocked video
5 ✓ March 12th, 2011