Elementalslayer - Kill the ArcTrooper within 1 minute 30 seconds
Kill the Tharsis Refinery ArcTrooper in under 1 minute 30 seconds
3/3/2009
9:04:48 PM
Rare 28.2%
Berserker - Kill 25 Helghast with melee attacks
Kill 25 Helghast using melee attacks
3/3/2009
6:12:14 PM
Rare 25.7%
Defensive Fighter - Kill 30 Helghast with an emplaced weapon
Kill 30 Helghast using the StA3 fixed gun emplacement
3/3/2009
12:53:23 AM
Rare 45.1%
Killing Spree - Kill 5 Helghast in 15 seconds
Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health
3/3/2009
12:43:09 AM
Rare 39.3%
Get Your Left Foot Wet
Complete a match in Campaign Co-Op mode. (Online co-op only)
1/30/2009
10:39:13 PM
Rare 12.6%
