Rescue
In the "Ground Zeroes" mission, rescue the prisoner to be executed and extract him via chopper
12/11/2008
6:49:08 PM
Rare 16.3%
Tough as nails
Win all storyline campaign missions (not including What-If missions) playing either Online Versus, or in Hard mode
12/11/2008
2:18:57 PM
Ultra Rare 1.4%
Treasure Domination
Win a Plunder game without letting the opposing team score (5-0)
12/11/2008
1:24:15 PM
Ultra Rare 0.7%
Trapped in Time
In Mob of the Dead, use and upgrade all traps before round 10.
12/10/2008
8:18:13 PM
Ultra Rare 0.7%
Nightmare Collector
Solo Campaign: Play whole game on Nightmare difficulty level
12/9/2008
12:37:47 PM
Ultra Rare 3.9%
Weapon Facility
Gain access to the Facility in Nightfall in Regular or Hardcore difficulty.
12/5/2008
3:36:42 AM
Ultra Rare 1.9%
Soft Targets
Destroy all vehicles using the UAV in Chapter 7: Golden Gate
11/22/2008
3:22:55 AM
Rare 32.8%
Don't Tread on Me
Complete the "Iron Clad" Special Ops mission on any difficulty.
11/20/2008
10:27:07 AM
Ultra Rare 0.5%
Draw, Pardner!
Defeat 100 enemies in DL-Story-01: Jetstream's Story Mode using Quick Draw.
11/18/2008
5:18:25 AM
Ultra Rare 0.6%