kenseizenkai

That's Officer Chambers to You Defeat all bosses except Centurion using Rebecca.

Narbacular Drop Place a portal under your co-op partner while they are gesturing

Bridge Building Complete all test chambers in the Hard-Light Surfaces co-op course

Terrorist Factor Turned Complete Private Estate on any difficulty

A Weird Interest in Leeches Finish Leech Hunter with rank A.

Tracker Placed Complete Abandoned Mill on any difficulty

Who's Got the Herb? Finish the game without combining herbs.

Iranian Intel Retrieved Complete Special Missions HQ on any difficulty

Air Show Perform 2 aerial gestures before touching the ground in co-op

American Freedom Averted Complete Transit Yards on any difficulty

Infiltration/Interrogation Complete Detention Facility on any difficulty

20/20 Vision Kill 50 enemies with the Death Stare at full charge.

Welcome to Team Wesker Put on Team Wesker costume.

Gesticul-8 Perform all 8 gestures of your own volition in co-op

C&C Optimized Fully upgrade your headquarters

Paladin Restored Survive the attack on Paladin

American Fuel Engaged Complete LNG Terminal on any difficulty

Save Your Prayers Finish the game without saving.

Distracted from the Hunt Defeat all enemies in Leech Hunter.

Obstacle Building Complete all test chambers in the Excursion Funnels co-op course

4th Echelon Status Confirmed Complete the single player campaign

Evidence Concealed Hide 5 bodies in containers

This is Serious Business Finish the game without using a recovery item (including Green Chemicals).

Can't Touch This Dance in front of a turret blocked by a hard light bridge in co-op

Who Needs Partners? Collect all of only one color of Leech Charms.

You Saved Science Complete all test chambers in all courses of co-op

S is for S.T.A.R.S. Finish the game with rank S.

Mission Footprint Zero Complete a single player mission without being detected during gameplay

I Could Shoot, You Know Obtain all weapons.

From Zero to Hero Finish the game on Hard difficulty.

Empty Gesture Drop your co-op partner in goo while they are gesturing by removing the bridge under them

Wanna Go for a Ride? Earn all trophies.

Hostages Secured Save the hostages in the Transit Yards

Infiltration Operator Complete all 4th Echelon Missions from Anna Grímsdóttir

Four Ring Circus Enter 4 different portals without touching the ground in co-op

Tri-Rotor Functionality Disable a security device using the Tri-Rotor

Asking for Trouble Taunt GLaDOS in front of a camera in each of the five co-op courses

Hunter Operator Complete all 4th Echelon Missions from Andriy Kobin

Best in Class Get highest xp total in one match (Ranked Match)

Mapper Create a map and get it validated in all game modes

Upgraded Player Upgrade one class 3 times (Ranked Match)

Extraction Operator Complete all 4th Echelon Missions from Charlie Cole

Hired Gun Reach Rank 5 (Ranked Match)

First Response Team Get highest revives count in a ranked match

Iron Grip Never lose a cube in Chamber 6 of the Mass and Velocity co-op course

Party of Three Find the hidden companion cube in co-op test chamber

Battle Hardened Play at least one full round in every Game Mode (Ranked Match)

Portal Conservation Society Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements

4th Echelon Commendation Complete every single player mission on Realistic difficulty

No Kill Option Engaged Complete the single player campaign without killing anyone as Sam Fisher