ACHIEVEMENT - HOW TO UNLOCK MISSION ACCOMPLISHED (20 points) - Complete the Campaign on Casual difficulty. THE EXTRA MILE (40 points) - Complete the Campaign on Hardcore difficulty. UNDER DURESS (10 points) - Interrogate the sniper. 4'S COMPANY (20 points) - Play through an entire chapter with 4 player co-op. CHALLENGE JUNKIE (25 points) - Complete all Challenges. UNTOUCHABLE (20 points) - Complete a mission on Hardcore without getting healed. TIME IS MONEY (10 points) - Complete a challenge. KILLING MACHINE (20 points) - Kill 50 enemies in a single combo. PROFESSIONAL WRESTLER (10 points) - Perform all 4 fully upgraded grab moves. KNOCK, KNOCK (10 points) - Blow the factory gates!. GUN SAFARI (30 points) - Use each weapon in the game to kill an enemy. HANDS-ON (30 points) - Kill 2000 enemies using melee attack or grabs. BALKAN PARTY (20 points) - Complete chapter 1. DESERT STORM (20 points) - Complete chapter 2. URBAN PACIFICATION (20 points) - Complete chapter 3. BURMA BREAKOUT (20 points) - Complete chapter 4. FLORENCE NIGHTINGALE (10 points) - Heal 50 times. RAINING DOWN FIRE (10 points) - Take out the weapons train. PEAK PERFORMANCE (10 points) - Upgrade 1 character completely. TOP CLASS CREW (35 points) - Upgrade all characters and signature weapons. BLANKET PARTY (10 points) - Perform all grab moves, melee attacks and signature kills.