Sharpshooter
Get 30 headshots while scoped in with the Fareye or Marksman in the single player Campaign.
11/13/2010
5:57:26 PM
Rare 31.1%
Melonpopper - 15 headshots using the sniper rifle
Get 15 headshots using the VC32 Sniper Rifle
10/23/2010
3:12:23 PM
Rare 11.8%
Barrel of Death - Kill 3 Helghast using your environment
Kill 3 Helghast at once using the surrounding environment
7/7/2010
2:35:06 PM
Rare 25.3%
Berserker - Kill 25 Helghast with melee attacks
Kill 25 Helghast using melee attacks
7/6/2010
1:38:13 PM
Rare 25.7%
Giantslayer - Kill the Heavy within 1 minute
Kill the Blood Meridian heavy in under 1 minute
7/5/2010
4:32:09 PM
Rare 32.3%
Treadhead - Kill 30 Helghast whilst in the tank
Take 30 Helghast lives whilst using the ISA tank
7/5/2010
4:16:38 PM
Very Rare 7.8%
Bullet Counter - Manually reload 150 times
Manually reload your weapon 150 times
7/5/2010
3:27:10 PM
Rare 33.1%
Demonslayer - Kill Radec within 20 minutes
Kill Radec at Visari Palace within 20 minutes
3/3/2010
11:01:01 AM
Rare 19.6%
Safety First - Shoot off 100 helmets
Shoot off 100 Helghast helmets during battle
3/3/2010
9:55:41 AM
Rare 35.9%
Can Opener - Destroy a Helghast APC
Destroy any Helghast APC during battle
3/2/2010
4:44:34 PM
Rare 29.5%
Killing Spree - Kill 5 Helghast in 15 seconds
Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health
3/2/2010
3:51:22 PM
Rare 39.3%
Master Conductor - Electrocute 3 Helghast
Electrocute 3 Helghast with a single burst from the VC5 Electricity Gun
3/2/2010
3:13:50 PM
Rare 21.9%