Defensive Fighter - Kill 30 Helghast with an emplaced weapon
Kill 30 Helghast using the StA3 fixed gun emplacement
2/27/2010
8:58:29 PM
Rare 45.1%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
1/16/2010
5:32:44 AM
Rare 21.2%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
1/3/2010
11:57:27 PM
Rare 17.0%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
1/3/2010
11:47:59 PM
Rare 25.3%
