Drive By
Kill 20 enemies in a row while driving a vehicle in Single Player or Special Ops.
6/3/2010
6:43:08 AM
Very Rare 8.1%
Weapon of Minor Destruction
Kill no more than one zombie with a nuke. (Map Pack 2 only)
4/11/2010
8:04:45 PM
Very Rare 7.0%
Hammer Time
Repair 200 window boards in a single game. (Map Pack 2 only)
4/11/2010
7:52:40 PM
Ultra Rare 3.9%
Perkaholics Anonymous!
Survive until round 20 without buying a single Perk. (Map Pack 3 only)
4/1/2010
12:22:15 PM
Ultra Rare 4.7%
Pack Addict!
Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)
3/26/2010
9:12:01 AM
Very Rare 5.4%
Der Electrician!
Link all teleport pads before round 7. (Map Pack 3 only)
3/26/2010
7:21:08 AM
Very Rare 7.6%
Acquire Waffle Weapons!
Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)
3/26/2010
5:28:06 AM
Very Rare 5.6%
Downed but Not Out
Kill 4 enemies in a row while downed in Special Ops.
2/4/2010
12:06:04 AM
Very Rare 5.8%
Professional
Earn all 3 stars in at least 15 different Special Op missions.
2/4/2010
12:02:03 AM
Ultra Rare 3.2%
Operative
Earn all 3 stars in at least 10 different Special Op missions.
1/20/2010
2:14:41 PM
Very Rare 5.6%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
1/15/2010
2:18:18 PM
Very Rare 9.7%
