Flashbangs (Graves and Lang): Successfully complete four missions.
HEAT rocket launcher (Lang): Successfully complete the first mission.
Incendiary grenade (Lang): Successfully complete five missions.
LMG 5.56mm 200-round magazine capacity (Lang): Successfully complete three missions.
LMG 5.56mm 25% increased rate of fire (Lang): Successfully complete seven missions.
LMG 5.56mm 40mm grenade launcher (Lang): Successfully complete two missions.
LMG 5.56mm Foregrip (Lang): Successfully complete nine missions.
Proximity mine (Graves): Successfully complete six missions.
Shotgun attachment (Graves): Successfully complete two missions.
Getting the "Curse Of The Bambino" achievement
During the "Sawmill" mission, you must get two nuke suitcases from a sawmill in Africa. Foley can be found in a building under interrogation. Rescue him to get the achievement. Note: He must remain alive until the mission ends.
Achievements
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
Campaign Completed (Easy) (50 points): Complete campaign mode with any combination of single player and co-op on Easy difficulty.
Campaign Completed (Normal) (75 points): Complete campaign mode with any combination of single player and co-op on Normal difficulty.
Campaign Completed (Hard) (100 points): Complete campaign mode with any combination of single player and co-op on Hard difficulty.
Campaign Completed (Extreme) (150 points): Complete campaign mode with any combination of single player and co-op on Extreme difficulty.
Lang Time Dead (20 points): Complete any campaign or co-op mission with at least 50 kills and 30% accuracy using Lang.
Graves Digger (20 points): Complete any mission with at least 50 kills and 40% accuracy using Graves.
Ain't Got Time To Bleed (20 points): Complete any Campaign or Co-op mission without going MIA (no loads or checkpoint resumes allowed).
Kill Streak (20 points): Score 50 kills in a row without going MIA.
Splash Damage (20 points): Achieve 10 grenade kills in one mission.
Brawler (20 points): Achieve 10 melee kills in one single player or co-op mission.
Minute Man (20 points): Destroy 45 objects in 60 seconds.
Scorched Earth (20 points): Destroy at least 75% of destroyable objects in a mission.
Collateral Damage (20 points): Make 10 indirect kills in a mission by shooting explosive objects such as barrels or gas cylinders.
One Careful Owner (10 points): Ensure BMP survives until the end of Monastery.