Killing Spree - Kill 5 Helghast in 15 seconds
Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health
3/1/2009
4:42:33 PM
Rare 39.3%
Melonpopper - 15 headshots using the sniper rifle
Get 15 headshots using the VC32 Sniper Rifle
3/1/2009
3:55:48 PM
Rare 11.8%
Professional - 3 revolver headshots in a row
Get 3 headshots in a row using the same clip of M4 Revolver ammunition
3/1/2009
3:50:07 PM
Ultra Rare 2.3%
Berserker - Kill 25 Helghast with melee attacks
Kill 25 Helghast using melee attacks
3/1/2009
3:34:59 PM
Rare 25.7%
Bullet Counter - Manually reload 150 times
Manually reload your weapon 150 times
3/1/2009
2:06:45 PM
Rare 33.1%
Barrel of Death - Kill 3 Helghast using your environment
Kill 3 Helghast at once using the surrounding environment
3/1/2009
2:03:46 PM
Rare 25.3%
Historian
Collect 50% of the journal intelligence found throughout the game.
3/1/2009
1:29:09 PM
Rare 38.3%
Defensive Fighter - Kill 30 Helghast with an emplaced weapon
Kill 30 Helghast using the StA3 fixed gun emplacement
2/28/2009
7:01:24 PM
Rare 45.1%
Giantslayer - Kill the Heavy within 1 minute
Kill the Blood Meridian heavy in under 1 minute
2/28/2009
6:58:24 PM
Rare 32.3%
Paparazzi
Collect 25% of the journal intelligence found throughout the game.
2/28/2009
5:22:09 PM
Common 56.4%
Tour of Duty
Complete one mission on each region in the Cooperative campaign.
1/7/2009
2:59:40 PM
Very Rare 7.4%
Team Player
Complete 5 missions with a full party of 8 in the Cooperative campaign.
1/7/2009
2:30:30 PM
Rare 10.9%
Specter Recon
Collect 50 pieces of gray tech in the Cooperative campaign.
1/7/2009
2:30:20 PM
Rare 15.6%