Peek-a-boo!
Kick open a door, peek open a door, and throw a grenade while peeking a door.
1/19/2017
11:07:25 PM
Very Rare 6.9%
Boots on the Ground
Go 2 minutes without double jumping or wall running in a mission where these abilities are available.
1/18/2017
10:14:23 PM
Rare 37.7%
Four of a Kind
Kill 4 enemies in a row with headshots in the single player campaign.
1/16/2017
10:11:18 PM
Rare 31.0%