Get Your Right Foot Wet
Complete a match in Competitive Co-Op mode. (Online co-op only)
8/14/2009
3:30:37 AM
Rare 16.8%
Run-and-Gunner
Kill 20 enemies by shooting from the hip (without aiming with the L1 button)
8/7/2009
2:25:59 AM
Rare 22.5%
Drop Everything
Thunder Drop for a total distance of at least 500 meters.
6/13/2009
8:28:19 PM
Rare 43.2%