Fragmartyr - Kill 2 Helghast whilst taking your own life
Kill 2 Helghast at once and take your own life using a single frag grenade
7/12/2010
12:27:21 PM
Very Rare 5.4%
Fragmerchant - Kill 5 Helghast using a single grenade
Kill 5 Helghast at once using a single frag grenade
7/12/2010
12:26:23 PM
Very Rare 5.8%
Killing Spree - Kill 5 Helghast in 15 seconds
Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health
7/12/2010
12:26:17 PM
Rare 39.3%
Ghost
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
7/2/2010
10:45:18 AM
Ultra Rare 3.1%
First Day of School
Complete 'S.S.D.D' and 'Team Player' on Veteran Difficulty.
7/2/2010
10:35:24 AM
Very Rare 7.1%
Pit Boss
Run The Pit in 'S.S.D.D' and finish with a final time under 30 seconds.
7/2/2010
10:20:42 AM
Ultra Rare 2.8%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty.
3/30/2010
10:11:28 PM
Very Rare 5.8%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
3/30/2010
9:44:20 PM
Rare 33.0%
March of the Red Army
Complete Soviet mission 4 on any difficulty level
2/19/2010
12:05:33 PM
Rare 41.1%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
2/3/2010
12:51:46 AM
Very Rare 9.7%
The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.
2/3/2010
12:11:07 AM
Rare 30.0%