Achievements
Complete each achievement to receive the allotted gamerscore.
A Mess of Stiff Staff Sergeants (15): Kill Inferno's Sergeants in single player
Airborne (10): Pilot a helicopter in single player
From Cold Dead Hands (15): Steal all Inferno's Weapon Crates in single player
Goody Two Shoes (15): Bring 20 Prisoners to the Church in single player
Inferno's Briefs (15): Steal all the Document Briefs in single player
Jonesing for Relics (15): Return all the Relics to the Museum in single player
Lord Master of Great Skill (30): Get "Skill Level - Alien" in single player
Mega Kill Combo (20): Get a 50x Damage Streak in single player
Supply Problems (15): Destroy all Mining Carts in the Kaabe Mountains in single player
The Daily Grind (20): Get a character to max level in single player
To Hell and Back (10): Complete Mission 9 on any Difficulty in single player
Tough Stuff (20): Complete all missions on Hardcore Difficulty

Coldstrike Campaign Achievements
Extraction (10): Mission 1 - Rescue all the civilians in single player
Intelligence (10): Mission 2 - Acquire all intel on Coldstrike's plans in single player
Pansy Worm (30): Mission 3 - Defeat the Panzer Wyrm