Chaos Averted
Kill an infected teammate with a headshot before they become a zombie in any mode.
7/19/2012
11:37:33 PM
Rare 26.7%
Danger, High Voltage!
Complete the third mission of the U.S.S. campaign.
7/17/2012
9:39:18 PM
Rare 47.8%
Bloody Good Time
Kill 5 enemies with Blood Frenzy in a single campaign game or multiplayer match.
7/17/2012
9:22:08 PM
Common 51.5%
A Baker's Dozen
Run over and kill 13 enemies with the snowmobile in the "Black Ice" Special Ops mission.
7/11/2012
1:21:46 AM
Ultra Rare 0.2%
Tactician
Earn 1 star in each mission of Special Ops Mission Mode.
7/11/2012
12:11:37 AM
Ultra Rare 2.3%
Shotgun Diplomacy
Complete the Special Ops mission "Negotiator" on any difficulty.
7/10/2012
11:12:54 AM
Ultra Rare 1.2%
50/50
Complete a Special Ops Mission Mode game with the same number of kills as your partner.
7/10/2012
9:21:56 AM
Very Rare 7.1%
Slippery Slope
Complete the "Black Ice" Special Ops mission on any difficulty.
7/10/2012
9:21:43 AM
Ultra Rare 2.1%
Ménage à Trois
Destroy 3 tanks with a single 105mm shot in "Iron Lady."
7/4/2012
10:59:21 PM
Very Rare 5.8%
One-Four-One
Complete the "Kill Switch" Special Ops mission on any difficulty.
7/4/2012
10:50:01 PM
Ultra Rare 1.1%