Goody Two Shoes
Not unlocked yetBring 20 Prisoners to the Church in single player
Airborne
Not unlocked yetPilot a helicopter in single player
A Mess of Stiff Staff Sergeants
Not unlocked yetKill Inferno's Sergeants in single player
Jonesing for Relics
Not unlocked yetReturn all the Relics to the Museum in single player
From Cold Dead Hands
Not unlocked yetSteal all Inferno's Weapon Crates in single player
Supply Problems
Not unlocked yetDestroy all Mining Carts in the Kaabe Mountains in single player
Inferno's Briefs
Not unlocked yetSteal all the Document Briefs in single player
To Hell and Back
Not unlocked yetComplete Mission 9 on any Difficulty in single player
Tough Stuff
Not unlocked yetComplete all missions on Hardcore Difficulty
The Daily Grind
Not unlocked yetGet a character to max level
Mega Kill Combo
Not unlocked yetGet a 50x Damage Streak in single player
Lord Master of Great Skill
Not unlocked yetGet "Skill Level - Alien" in single player
Extraction
Not unlocked yet
Intelligence
Not unlocked yet
Pansy Worm
Not unlocked yet