Hammer Time
Repair 200 window boards in a single game. (Map Pack 2 only)
8/25/2009
9:30:10 PM
Ultra Rare 3.9%
Alchemist Special
Defeat the Alchemist without using the acrobatic attack.
8/25/2009
7:40:57 PM
Rare 41.4%
40 Knives!
Kill 40 zombies with the bowie knife. (Map Pack 3 only)
8/24/2009
10:12:06 PM
Ultra Rare 2.9%
Perkaholics Anonymous!
Survive until round 20 without buying a single Perk. (Map Pack 3 only)
8/24/2009
9:24:14 PM
Ultra Rare 4.7%
R.I.P. Jordan Shepherd
Defeat Daedalus; complete the single player Campaign.
8/23/2009
8:26:52 PM
Rare 33.8%
Flawless Round
Correctly answer all questions in a multiplayer round with all players
8/21/2009
7:35:53 PM
Rare 16.1%