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