Accomplish the indicated achievement to get the corresponding number of Gamerscore points.
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Train the rook (any difficulty).
Green as Grass (10 points)
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Story progression in Act 1, Chapter 2.
It's a Trap! (10 points)
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Story progression in Act 1, Chapter 4.
Escort Service (10 points)
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Story progression in Act 1, Chapter 6.
Girl About Town (10 points)
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Story progression in Act 2, Chapter 4.
That Sinking Feeling (10 points)
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Story progression in Act 2, Chapter 5.
Freebaird! (10 points)
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Story progression in Act 2, Chapter 6.
Heartbroken (10 points)
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Story progression in Act 3, Chapter 3.
Longitude and Attitude (10 points)
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Story progression in Act 3, Chapter 4.
Tanks for the Memories (10 points)
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Story progression in Act 3, Chapter 6.
Water Sports (10 points)
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Story progression in Act 4, Chapter 2.
There's a Time for Us (10 points)
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Story progression in Act 4, Chapter 3.
Better Wrapped in Beacon (10 points)
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Story progression in Act 4, Chapter 6.
Have Fun Storming the Castle (10 points)
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Story progression in Act 5, Chapter 1.
And the Horse You Rode in On (10 points)
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Story progression in Act 5, Chapter 2.
You Are the Support, Son (10 points)
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Story progression in Act 5, Chapter 4.
Brumak Rodeo (10 points)
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Story progression in Act 5, Chapter 5.
Does This Look Infected to You? (10 points)
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Complete all campaign acts on Casual Difficulty.
Tourist of Duty (25 points)
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Complete all campaign acts on Normal Difficulty.
Guerilla Tactician (50 points)
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Complete all campaign acts on Hardcore Difficulty.
Artist of War (75 points)
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Complete all campaign acts on Insane Difficulty.
Suicide Missionary (150 points)
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Recover 5 collectibles (any difficulty).
Collector (5 points)
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Recover 20 collectibles (any difficulty).
Pack Rat (15 points)
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Recover all 41 collectibles (any difficulty).
Completionist (30 points)
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Complete 1 chapter in co-op on any difficulty (Marcus or Dom).
One-Night Stand (10 points)
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Complete 10 chapters in co-op on any difficulty (Marcus or Dom).
Open Relationship (30 points)
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Complete all acts in co-op on any difficulty (Marcus or Dom).
Friends with Benefits (50 points)
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Perform 30 perfect active reloads (any mode).
Once More, With Feeling (10 points)
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Melee 30 Tickers (any mode).
Takes a Licking (30 points)
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Kill 30 enemies with a cover mounted Mulcher (any mode).
Organ Grinder (10 points)
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Kill 30 enemies with the heavy Mortar (any mode).
Shock and Awe (10 points)
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Kill 10 enemies with a planted grenade (any mode).
Said the Spider to the Fly (10 points)
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Melee 10 enemies down with the Boomshield equipped (any mode).
Crowd Control (10 points)
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Kill 30 enemies with the Scorcher Flamethrower (any mode).
Smells Like Victory (10 points)
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Kill an enemy with every weapon in the game (any mode).
Variety Is the Spice of Death (30 points)
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Kill 100,000 enemies (any mode).
Seriously 2.0 (50 points)
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Win 3 matches of Wingman (public).
Standing Here, Beside Myself (10 points)
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Capture 10 meatflags in Submission (public).
Beat the Meatflag (10 points)
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Win 10 rounds of Guardian as the leader (public).
It's Good to be the King (10 points)
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Win three matches of King of the Hill (public).
You Go Ahead, I'll Be Fine (10 points)
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Successfully complete the 5 lessons of multiplayer Training Grounds.
Back to Basic (10 points)
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Play 1999 rounds of multiplayer (any mode).
Party Like It's 1999 (30 points)
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Win a multiplayer match on each map (any mode).
Around the World, Again (30 points)
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Survive the first 10 waves of Horde (any difficulty, any map).
Dirty, Dirty Horde (20 points)
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Survive all 50 waves of Horde (any difficulty, any map).
Hoard the Horde (30 points)
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Win 10 chainsaw duels (any mode).
Crossed Swords (10 points)
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Kill 10 enemies with a grenade while down but not out (any mode).
A Parting Gift (20 points)
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Use a meatshield to save your life 10 times (any mode).
Pound of Flesh (10 points)
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Submit a spectator photo.
Photojournalist (10 points)
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Perform all 11 unique executions on a downed enemy.
Kick 'Em When They're Down (10 points)
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Earn enough multiplayer experience to reach level 25 (Public only)
Battle-Tested Gear (30)
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Earn enough multiplayer experience to reach level 15 (Public only)
Seasoned Gear (20)
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Earn enough multiplayer experience to reach level 5 (Public only)
Rookie Gear (10)