Stick Around - Nail 20 Helghast to the wall
Nail 20 Helghast to a wall using the Boltgun VC-21
2/22/2013
1:10:18 AM
Ultra Rare 3.7%
Dragonslayer - Destroy the ATAC within 1 minute 30 seconds
Destroy the Salamun Bridge ATAC in under 1 minute 30 seconds
2/22/2013
12:33:55 AM
Rare 20.0%
Berserker - Kill 25 Helghast with melee attacks
Kill 25 Helghast using melee attacks
2/22/2013
12:02:05 AM
Rare 25.7%
Melonpopper - 15 headshots using the sniper rifle
Get 15 headshots using the VC32 Sniper Rifle
2/21/2013
11:47:54 PM
Rare 11.8%
Bullet Counter - Manually reload 150 times
Manually reload your weapon 150 times
2/21/2013
11:38:58 PM
Rare 33.1%
Safety First - Shoot off 100 helmets
Shoot off 100 Helghast helmets during battle
2/21/2013
10:43:00 PM
Rare 35.9%
Barrel of Death - Kill 3 Helghast using your environment
Kill 3 Helghast at once using the surrounding environment
2/21/2013
10:25:54 PM
Rare 25.3%
Defensive Fighter - Kill 30 Helghast with an emplaced weapon
Kill 30 Helghast using the StA3 fixed gun emplacement
2/21/2013
9:53:33 PM
Rare 45.1%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
2/21/2013
8:03:35 AM
Rare 31.6%
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
2/21/2013
7:35:07 AM
Ultra Rare 1.8%
Team Building
Complete all test chambers in the Team Building co-op course
2/21/2013
7:00:23 AM
Rare 46.8%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
2/21/2013
6:52:37 AM
Very Rare 5.5%
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
2/21/2013
6:30:57 AM
Ultra Rare 4.6%
