Divided We Fall
Complete an Echo Six Expansion mission with no human player incapacitated from death or infection.
8/1/2012
5:22:29 PM
Ultra Rare 2.3%
Way of the Warrior
Defeat 150 enemies singlehandedly in one playthrough of "Desperate Escape."
8/1/2012
1:15:50 PM
Very Rare 5.0%
Kings of Europe
Awarded for becoming a UEFA Champions League Winner in [Master League].
7/25/2012
4:19:02 PM
Rare 17.6%
Raccoon City Cleanser
Complete all U.S.S. missions on Professional.
7/18/2012
5:29:57 AM
Ultra Rare 4.0%
Chaos Averted
Kill an infected teammate with a headshot before they become a zombie in any mode.
7/18/2012
4:45:44 AM
Rare 26.7%
