ACHIEVEMENT - HOW TO UNLOCK
4'S COMPANY - Play through an entire chapter with 4 player co-op.
BALKAN PARTY - Complete chapter 1.
BLANKET PARTY - Perform all grab moves, melee attacks and signature kills.
BURMA BREAKOUT - Complete chapter 4.
CHALLENGE JUNKIE - Complete all Challenges.
DESERT STORM - Complete chapter 2.
FLORENCE NIGHTINGALE - Heal 50 times.
GUN SAFARI - Use each weapon in the game to kill an enemy.
HANDS-ON - Kill 2000 enemies using melee attack or grabs.
KILLING MACHINE - Kill 50 enemies in a single combo.
KNOCK, KNOCK - Blow the factory gates!.
MISSION ACCOMPLISHED - Complete the Campaign on Casual difficulty.
PEAK PERFORMANCE - Upgrade 1 character completely.
PROFESSIONAL WRESTLER - Perform all 4 fully upgraded grab moves.
RAINING DOWN FIRE - Take out the weapons train.
THE EXTRA MILE - Complete the Campaign on Hardcore difficulty.
TIME IS MONEY - Complete a challenge.
TOP CLASS CREW - Upgrade all characters and signature weapons.
UNDER DURESS - Interrogate the sniper.
UNTOUCHABLE - Complete a mission on Hardcore without getting healed.
URBAN PACIFICATION - Complete chapter 3.