Only a Real Master
Beat an opponent while they still have 90% health and you have 10% or less health remaining
1/16/2016
7:33:57 PM
Ultra Rare 1.7%
Survivor
Earn a total of 5 stars from Survival missions in the original game
1/16/2016
1:42:59 AM
Very Rare 6.6%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
1/15/2016
11:14:58 PM
Common 54.5%
