The Knowledge
Capture 6 structures in a ranked online match or skirmish (medium-or-greater difficulty)
8/21/2009
1:40:52 PM
Very Rare 9.6%
Spitting Lead
Kill 50 enemies using the Wraith with the force barrier engaged in the single player Campaign.
7/10/2009
12:31:00 PM
Rare 12.3%
Explosives Expert
Get 150 kills with the Carbine 40mm, LAARK, or frag grenade in the single player Campaign.
7/9/2009
11:42:28 AM
Rare 18.7%
For Close Encounters
Get 10 one-hit head-shot kills with the shotgun in the single player Campaign.
7/6/2009
6:33:14 PM
Rare 22.1%
Mankind Is Your Mask
Complete 3 missions without causing a single Military Alert.
6/22/2009
11:30:35 AM
Very Rare 7.1%
The Cleaner
Destroy 10 Military Bases or Infected Hives in New York City.
6/19/2009
3:02:13 PM
Rare 39.4%
