| Achievement | How to unlock
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| Alone in the Dark | Beat Catacombs in Solo.
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| Better Living Through Mad Science | Beat Biotics in Solo.
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| Big Trouble in Little Zedville | Kill a Husk with a thrown knife.
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| Blood Harvest | Beat Farmhouse in Solo.
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| Both Ways, Through Ten Feet of Snow | Kill a Fleshpound with only knives and pistols.
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| Bringing a Knife to a Chainsaw Fight | Kill a Scrake with only knives.
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| Bullets-For-Everyone Time | Get 5 kills while in Zed Time.
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| Cheap Shot | Kill a boss in Holdout in 1 shot.
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| Fashion Kills | Beat Paris in Solo.
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| Gunplay is the Best Play | Beat a map with only guns.
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| Holdout Bronze | Get 2000 points in Holdout.
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| Holdout Diamond | Get 10000 points in Holdout.
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| Holdout Gold | Get 7000 points in Holdout.
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| Holdout Silver | Get 5000 points in Holdout.
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| I Think I'm a Clone Now | Beat Biotics in Co-op.
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| It Slices, it Dices, it Flies! | Kill a Zed at long range with a thrown knife.
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| Just a Flesh Wound | Completely dismember a Zed.
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| More Hands Make Light Slaughter | Beat Farmhouse in Co-op.
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| Never Go Caving Alone | Beat Catacombs in Co-op.
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| Paris is for Lovers... of Carnage | Beat Paris in Co-op.
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| Stop Hitting Yourself | Dual-wield Zed limbs.
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| Throw the Grenade, Not the Pin | Blow yourself up with a grenade.
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| Up Close and Personal | Beat a map with only melee attacks.
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| You Ain't Got Time to Bleed | Revive your partner in co-op.
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| You Got Anything Harder? | Beat game on Hardcore (Hard mode)
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