Chief Investigator: Complete All Missions (dev challenge mode).

Trophy	How to Unlock
Ala Mode	Play 5 games in all MP modes.
Anger Management	Complete 10 emotional responses.
Beat Cop	Complete a mission.
Big-game Hunter	Take out 10 enemies with the antler.
Bloodshot	Complete missions 2, 3, 4, 6, 8 to unlock each new Fight Club.
Brick Wall	Complete 5 successful blocks.
Bum King	Survive Bum Rush match without firing a single shot as SCU 5 times.
Can You Hear Me Now?	All oro speakers destroyed.
Chain Gang	Successfully execute each attack chain 5 times.
Collector	Successfully collect the evidence (as SCU) 5 times in Crime Scene mode.
Cut throat	Perform 25 finishing moves.
Decisive Restraint	Don't kill a single museum guard.
Defender	Successfully defend the evidence (as Infected) 10 times in Crime Scene mode.
Detective/First grade	Complete all missions.(FPS mode)
EPA (Environmental Pwnage Area)	Successfully execute 25 environmental finishing moves.
Final Word	Complete first environmental finishing move.
Flambe	Take out 10 enemies with the flask/taser fire attack.
GOOOAAAALLLL!	Take out 5 enemies with the fooseball piece.
Gold-plated	Get the gold badge for every mission.(any difficulty)
Investigator	Complete Mission (dev challenge mode).
Just The Facts	Crime Scene: Collect the Evidence 10 Times.
Magellin	Play each MP map 5 times.
Master Investigator	Earn the maximum amount of investigator points for all forensic sequences.
MP Overachiever	Win a DM match (with at least 15 kills) without dying.
Punch-drunk	Kill 10 players with your fist.
Restraint (Not)	Win as SCU without firing a shot 10 times.
Rush Champ	Bum Rush: Eliminate the SCU 5 Times.
Self Medicated	Need to heal yourself for 1000 points of health.
Serial killer	Kill 1000 players.
Sidekick	Assist in scanning evidence in crime scene mode.
SKX	Kill 9 unique players with the serial killer reward.
Sleuth	Get a perfect score in a forensic event.
Survivor King	Bum Rush: Survivor (SCU) 5 Times.
The Plumber	Take out 50 enemies with the pipe
Trooper	Complete all missions.(any difficulty)
Tune in Tokyo	Collect all TV'S in each mission