Not on my watch
Protected Chaffin from the soldiers in the street in Operation Swordbreaker
10/29/2011
3:52:48 AM
Common 62.7%
Battlefield Expert
Online: obtain all unlocks in any kit or all Vehicle unlocks
9/26/2011
11:14:55 PM
Rare 25.3%
Monkey See, Monkey Don't
In Shangri-La, get something from the monkeys.
9/18/2011
12:19:23 AM
Ultra Rare 4.3%
Austin Overpowered
Complete Twin Rocks, Pike's Basin, and Gaptooth Breach Hideouts in Single Player.
8/1/2011
5:52:56 PM
Rare 10.3%
In a Hail of Bullets
Kill 500 enemies with any pistol or revolver in any game mode.
8/1/2011
2:47:33 AM
Rare 10.3%
Fast Learner
Kill your target and escape your pursuer in less than 10 seconds (Multiplayer Only).
7/29/2011
8:36:45 PM
Rare 16.6%
Synchronization Established
Complete an entire Session with at least one kill (Multiplayer Only).
7/29/2011
7:56:22 PM
Rare 35.0%
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
7/28/2011
5:36:36 AM
Very Rare 6.0%
Party of Three
Find the hidden companion cube in co-op test chamber
7/28/2011
5:25:25 AM
Ultra Rare 2.9%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
7/28/2011
5:11:50 AM
Very Rare 7.9%
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
7/28/2011
5:02:20 AM
Ultra Rare 2.1%
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
7/16/2011
10:59:42 PM
Rare 15.7%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
7/16/2011
1:17:51 AM
Rare 20.6%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
7/15/2011
9:54:54 PM
Rare 31.6%
