16 Achievements
A Mess of Stiff Staff Sergeants Kill Inferno's Sergeants in single player
7 achievers
Airborne Pilot a helicopter in single player
21 achievers
Extraction Mission 1 - Rescue all the civilians (Coldstrike DLC required)
2 achievers
From Cold Dead Hands Steal all Inferno's Weapon Crates in single player
2 achievers
Goody Two Shoes Bring 20 Prisoners to the Church in single player
2 achievers
Inferno's Briefs Steal all the Document Briefs in single player
1 achiever
Intelligence Mission 2 - Acquire all intel on Coldstrikes's plans (Coldstrike DLC required)
2 achievers
Jonesing for Relics Return all the Relics to the Museum in single player
3 achievers
Naughty or Nice Receive a present from Santa Claus (Coldstrike DLC required)
12 achievers
Pansy Worm Mission 3 - Defeat the Panzer Wyrm (Coldstrike DLC required)
4 achievers
Supply Problems Destroy all Mining Carts in the Kaabe Mountains in single player
1 achiever
To Hell and Back Complete Mission 9 on any Difficulty in single player
1 achiever
4 Achievements Remaining To Be Unlocked
Lord Master of Great Skill Get "Skill Level - Alien" in single player
Mega Kill Combo Get a 50x Damage Streak in single player
The Daily Grind Get a character to max level
Tough Stuff Complete all missions on Hardcore Difficulty