Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | How to unlock
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- ...That's A Promise ( 15 points )
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- Ain't Got Time to Bleed ( 15 points )
| - Heal or regenerate 30 blocks of health in Survivor.
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- Alien vs Predator ( 30 points )
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- Breaking Quarantine ( 15 points )
| - Escape from the Research Lab.
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- Breaking and Entering ( 15 points )
| - Find a way into the Research Lab.
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- Club hopper ( 15 points )
| - Survive The 'Party' at The Club.
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- Come to Mama ( 15 points )
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- Elite Sniper ( 15 points )
| - Kill 10 enemies with head shots from the scoped rifle.
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- Exit Strategy ( 15 points )
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- Extinction Agenda ( 30 points )
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- Eyes of The Demon ( 15 points )
| - Retrieve the ancient mask.
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- Fallen Comrade ( 15 points )
| - Find the Youngbloods in the Jungle.
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- Fortune and Glory ( 15 points )
| - Find all 45 Predator trophy belts.
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- Game Over, Man! ( 30 points )
| - Complete all three Campaigns.
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- Get to The Chopper! ( 30 points )
| - Recover Weyland's datapad.
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- Grim Reaper ( 15 points )
| - Harvest all available civilians in the Alien Campaign.
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| - Wipe out all of the Marines in the Colony.
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| - Kill 30 enemies with the pistol.
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- Harsh Language ( 15 points )
| - Discover all 67 Audio Diaries.
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- I Admire its Purity ( 15 points )
| - Complete Alien Campaign on Hard difficulty setting.
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- I LOVE the Corps! ( 30 points )
| - Complete Marine Campaign on Nightmare difficulty setting.
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- I Like to Keep This Handy ( 15 points )
| - Kill 2 enemies with one shot with the shotgun.
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- I Will Never Leave You... ( 15 points )
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- It Ain't No Man ( 15 points )
| - Complete Predator Campaign on Hard difficulty setting.
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- It Uses The Jungle ( 15 points )
| - Find a way through Gateway.
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- Killer Instinct ( 15 points )
| - Win your first Ranked Match in standard Deathmatch mode.
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- Let's Rock! ( 15 points )
| - Kill 5 enemies with one burst from the smartgun.
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- Magnificent, Isn't It? ( 30 points )
| - Complete Alien Campaign on Nightmare difficulty setting.
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- Matter of Honor ( 15 points )
| - Discover the Elite Predator's fate.
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- Not Bad for A Human ( 50 points )
| - Get all the Aliens vs Predator achievements.
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- One Big Bug ( 15 points )
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- One Ugly Mother ( 30 points )
| - Complete Predator Campaign on Nightmare difficulty setting.
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- Persecution Complex ( 15 points )
| - Achieve Persecutor status more than once in any Ranked Match.
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- Quite A Specimen ( 15 points )
| - Destroy all 50 Royal Jelly Containers.
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- Real Nasty Habit ( 50 points )
| - Get 18060 XP in Ranked Matches.
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| - Retrieve the second artifact.
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- Scatter Shot ( 15 points )
| - As a team, kill 20 enemies in under 60 seconds in a Survivor match..
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- Serial Killer ( 30 points )
| - Win 10 Ranked Matches in any Deathmatch mode.
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- Spin Doctor ( 15 points )
| - Kill two enemies with one throw of the Battle Disc.
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- Stay Frosty ( 15 points )
| - Complete Marine Campaign on Hard difficulty setting.
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- Stick Around ( 15 points )
| - Kill 20 enemies with the Combi Stick.
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- The Six Pack ( 30 points )
| - Play with six friends in a Ranked Match.
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- The Uninfected ( 30 points )
| - Finish a Ranked Infestation match as the only remaining prey.
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- Under Pressure ( 15 points )
| - Solve the riddle of the Ruins.
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- Very Tough Hombre ( 15 points )
| - Kill 10 enemies in a row without dying in a Ranked Match.
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- Welcome to The Party ( 30 points )
| - Get 6000 XP in Ranked Matches.
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- Welcome to The War ( 15 points )
| - Play and complete your first Ranked Match in standard Deathmatch mode.
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- World of Hurt ( 15 points )
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- You Have My Sympathies ( 15 points )
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Achievements...