Flawless Round
Correctly answer all questions in a multiplayer round with all players
9/26/2009
7:04:15 PM
Rare 16.1%
Gadget Freak
Purchase all the upgrades for one of your weapons in the single player campaign.
9/26/2009
12:50:59 PM
Rare 31.7%
Beatdown
Kill 50 enemies with melee attacks in a single player campaign.
9/26/2009
10:07:25 AM
Rare 22.3%
