Extreme challenge
Complete all the campaign missions on Elite difficulty.
3/21/2009
11:38:09 AM
Very Rare 5.0%
The hard way
Complete all the campaign missions on Hard difficulty.
3/21/2009
11:38:01 AM
Very Rare 7.3%
Campaign Complete: Normal
Complete all the campaign missions on Normal difficulty.
3/21/2009
11:25:17 AM
Rare 28.5%
Operation Twilight
Unlock and finish the 18th mission of the Campaign on Normal, Hard, or Elite.
3/18/2009
4:50:24 PM
Rare 28.8%
Operation Javelin
Unlock and finish the 17th mission of the Campaign on Normal, Hard, or Elite.
3/17/2009
8:01:43 PM
Rare 29.9%
Operation Wildhorse
Unlock and finish the 16th mission of the Campaign on Normal, Hard, or Elite.
3/17/2009
4:38:09 PM
Rare 30.6%
Operation Thunderbolt
Unlock and finish the 15th mission of the Campaign on Normal, Hard, or Elite.
3/16/2009
7:49:01 PM
Rare 31.2%
Operation Backhand
Unlock and finish the 14th mission of the Campaign on Normal, Hard, or Elite.
3/13/2009
5:40:08 PM
Rare 33.9%
Operation Iron Arrow
Unlock and finish the 12th mission of the Campaign on Normal, Hard, or Elite.
3/13/2009
2:41:45 PM
Rare 38.6%
Operation Torchlight
Unlock and finish the 11th mission of the Campaign on Normal, Hard, or Elite.
3/13/2009
2:12:48 PM
Rare 39.7%
Operation Red Eagle
Unlock and finish the 10th mission of the Campaign on Normal, Hard, or Elite.
3/12/2009
9:41:17 PM
Rare 41.8%
Operation Stiletto
Unlock and finish the 9th mission of the Campaign on Normal, Hard, or Elite.
3/12/2009
6:23:24 PM
Rare 42.6%
Operation Ulysses
Unlock and finish the 8th mission of the Campaign on Normal, Hard, or Elite.
3/12/2009
4:49:12 PM
Rare 48.9%
Operation Backfire
Unlock and finish the 7th mission of the Campaign on Normal, Hard, or Elite.
3/11/2009
9:47:03 PM
Common 51.0%
Operation Glass Hammer
Unlock and finish the 6th mission of the Campaign on Normal, Hard, or Elite.
3/11/2009
8:30:03 PM
Common 53.5%
OFF certification
Unlock and finish the 5th mission of the Campaign on Normal, Hard, or Elite.
3/10/2009
8:40:57 PM
Common 56.0%
Operation Blacklight
Unlock and finish the 4th mission of the Campaign on Normal, Hard, or Elite.
3/10/2009
5:28:23 PM
Common 57.4%
Operation Cobalt
Unlock and finish the 3rd mission of the Campaign on Normal, Hard, or Elite.
3/10/2009
11:48:42 AM
Common 63.5%
Operation Adder
Unlock and finish the 2nd mission of the Campaign on Normal, Hard, or Elite.
3/9/2009
11:17:45 AM
Common 67.2%
Operation Ghost Rider
Finish the 1st mission of the Campaign on Normal, Hard, or Elite difficulty setting.
3/8/2009
9:55:15 AM
Common 81.0%
