Safety First - Shoot off 100 helmets
Shoot off 100 Helghast helmets during battle
1/17/2010
2:49:46 AM
Rare 35.9%
Berserker - Kill 25 Helghast with melee attacks
Kill 25 Helghast using melee attacks
1/14/2010
3:54:17 AM
Rare 25.7%
Can Opener - Destroy a Helghast APC
Destroy any Helghast APC during battle
1/11/2010
2:21:25 AM
Rare 29.5%
Elementalslayer - Kill the ArcTrooper within 1 minute 30 seconds
Kill the Tharsis Refinery ArcTrooper in under 1 minute 30 seconds
1/7/2010
2:45:08 AM
Rare 28.2%
Killing Spree - Kill 5 Helghast in 15 seconds
Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health
1/7/2010
12:47:46 AM
Rare 39.3%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
11/14/2009
1:37:21 AM
Common 54.5%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
11/10/2009
5:29:53 PM
Rare 33.0%
