Run and Gunner - Kill 3 Helghast with one burst of assault rifle fire
Kill 3 Helghast using an M82 or StA52 assault rifle without releasing the trigger
2/3/2010
12:50:10 AM
Rare 12.4%
Safety First - Shoot off 100 helmets
Shoot off 100 Helghast helmets during battle
2/2/2010
11:54:26 PM
Rare 35.9%
Bullet Counter - Manually reload 150 times
Manually reload your weapon 150 times
2/2/2010
11:50:11 PM
Rare 33.1%
Southern Hills Medic
Revive 5 allies in Southern Hills during one round
2/1/2010
11:14:41 PM
Ultra Rare 0.7%
Grenade Hangman
Kill 10 enemies with grenades by aiming while hanging from a ledge
12/30/2009
2:31:11 AM
Very Rare 5.2%
Expert Dyno-Might
Kill three enemies with one explosion five times
12/30/2009
2:23:30 AM
Ultra Rare 4.8%
Run-and-Gunner
Kill 20 enemies by shooting from the hip (without aiming with the L1 button)
12/29/2009
10:24:01 PM
Rare 22.5%