Socialite
Complete a level online with 3 other players who are not on your friends list
2/6/2011
3:58:10 PM
Rare 18.0%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
2/5/2011
7:38:44 PM
Very Rare 9.7%
First Day of School
Complete 'S.S.D.D' and 'Team Player' on Veteran Difficulty.
2/4/2011
9:50:02 PM
Very Rare 7.1%
Pit Boss
Run The Pit in 'S.S.D.D' and finish with a final time under 30 seconds.
2/4/2011
9:27:04 PM
Ultra Rare 2.8%
The Sun Sets
Complete 'Breaking Point' on Veteran difficulty. (Solo only)
2/4/2011
12:56:03 AM
Ultra Rare 2.6%
Prisoner #627
Complete 'The Only Easy Day... Was Yesterday' and 'The Gulag' on Veteran Difficulty.
1/29/2011
3:22:52 AM
Ultra Rare 4.3%
Sacrificial Lamb
Shoot at or be shot by an ally with a Pack-a-Punch crossbow and kill six zombies with the explosion.
1/24/2011
9:59:19 PM
Ultra Rare 0.8%
Sally Likes Blood
Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.
1/23/2011
3:33:50 AM
Rare 34.9%
