Weedkiller
Kill 5 Cysts in the Biology Building with a single poison gas cloud.
2/17/2013
5:30:20 AM
Ultra Rare 2.6%
Ghosts of the Past
Face all of Carver’s demons by completing all Co-Op only optional missions.
2/16/2013
4:14:35 AM
Very Rare 5.0%
Hungry
Reach the pump room of the Waystation without alerting any Feeders.
2/15/2013
4:18:25 AM
Very Rare 5.1%
Share and Share Alike
Use the RIG to give an item to your Co-Op partner.
2/14/2013
6:20:51 PM
Rare 15.2%
From the Jaws
Save your Co-Op partner from an execution by killing the attacker.
2/14/2013
6:01:40 PM
Rare 14.2%
