Acquire Waffle Weapons!
Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)
8/21/2009
8:22:13 PM
Very Rare 5.6%
Perkaholics Anonymous!
Survive until round 20 without buying a single Perk. (Map Pack 3 only)
8/10/2009
11:03:59 PM
Ultra Rare 4.7%
Pack Addict!
Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)
8/10/2009
4:48:46 PM
Very Rare 5.4%
Der Electrician!
Link all teleport pads before round 7. (Map Pack 3 only)
8/8/2009
2:19:35 PM
Very Rare 7.6%
Weapon of Minor Destruction
Kill no more than one zombie with a nuke. (Map Pack 2 only)
7/28/2009
8:10:41 PM
Very Rare 7.0%
New Kid on the Block
You've won an event online! Let's hope this victory is the first of many.
7/15/2009
4:26:18 PM
Very Rare 7.9%
Carlson's Raiders
Complete 'Semper Fi' on any difficulty. (Solo only)
5/31/2009
10:09:40 PM
Common 58.2%
The Basics
Complete one of the missions you receive in the mission log.
11/6/2008
7:20:26 PM
Common 89.1%