Chaos Averted
Kill an infected teammate with a headshot before they become a zombie in any mode.
4/27/2012
4:28:29 AM
Rare 26.7%
A Gun by Any Other Name
Kill an enemy with each weapon type including special weapons.
4/26/2012
10:38:55 PM
Rare 24.8%
The Battle is Won...
Singleplayer: Finish the game on Easy, Normal or Hard
4/16/2012
4:08:52 AM
Rare 42.7%
Timber!
Singleplayer: In Rescue the Rescuers, chop down 5 trees with the Minigun
4/16/2012
3:46:43 AM
Rare 10.2%
The Quiet Professional
Singleplayer: In Neptune's Net, eliminate 13 enemies without alerting anyone
4/16/2012
3:19:27 AM
Ultra Rare 4.6%
Like a Surgeon
Singleplayer: While long range sniping, hit one of every bodypart
4/16/2012
2:25:26 AM
Rare 40.3%
It Takes A Village...Out
Singleplayer: Destroy 30 buildings in Gunfighters Village
4/16/2012
2:06:53 AM
Very Rare 5.9%