Raining Pain
Rack up a body count of 20 NVA using air support in Hue City.
11/16/2010
6:28:30 AM
Rare 32.6%
Vehicular Slaughter
Destroy all enemies on vehicles during the prison break.
11/16/2010
3:51:55 AM
Rare 18.5%
Atacama Desert Veteran
Successfully complete Atacama Desert in Onslaught mode on Hardcore difficulty
11/13/2010
7:24:12 PM
Ultra Rare 1.0%
Master of the Peak
Completed "Soldier's Peak" ("Warden’s Keep" downloadable content)
10/30/2010
8:24:18 AM
Rare 18.2%
Diabolist
Took advantage of Avernus's research ("Warden’s Keep" downloadable content)
10/30/2010
8:14:36 AM
Rare 17.4%
Atacama Desert Conquered
Successfully complete Atacama Desert in Onslaught mode on any difficulty
10/16/2010
5:44:48 PM
Ultra Rare 3.2%
Isla Inocentes Conquered
Successfully complete Isla Inocentes in Onslaught mode on any difficulty
10/16/2010
4:51:45 PM
Ultra Rare 3.0%