Unseen Predator
Remained in Zero's Deception mode for ten seconds straight
8/5/2014
12:10:36 PM
Very Rare 5.8%
You Can't Break Me
Complete all three Co-op Objective maps on Crushing
7/31/2014
12:51:21 AM
Ultra Rare 0.2%
Five by Five
Record 5 or more in 5 different stats with any player in a non-simulated game.
7/27/2014
3:47:08 PM
Ultra Rare 1.4%
I Told You I Was Hardcore
Complete All 3 Co-op Objective Maps on Hard Difficulty
7/24/2014
1:39:14 AM
Ultra Rare 0.3%
Brass Knuckles
Get 100 Melee Kills in Deathmatch or Elimination games
7/22/2014
2:56:56 AM
Ultra Rare 1.0%
Challenge Accepted
Completed level 1 of all non-level-specific challenges with a single character
7/21/2014
10:20:13 PM
Ultra Rare 1.8%
Friendship Rules
Revived someone from "Fight for Your Life!" that is on your friends list
7/21/2014
10:10:25 PM
Rare 25.2%
The Angelic Ruins
Completed the larger challenge in The Angelic Ruins coliseum
7/21/2014
9:23:22 PM
Ultra Rare 1.1%
Big Tournament
Completed each of the larger challenges in all 3 coliseums
7/21/2014
9:23:16 PM
Ultra Rare 0.9%
Muerte la robo-lución
Killed the Interplanatary Ninja Assassin Claptrap
7/17/2014
6:29:26 PM
Very Rare 6.5%