| Achievement | How to unlock
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| A Gift from Beyond | Earn a Rune.
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| A Toe into Madness | Complete The UAC on Ultra-Nightmare.
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| An Old Friend | Acquire the BFG.
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| Argent Fiend | Fully upgrade Health, Armor, and Ammo capacity on a single campaign run.
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| Argent Overload | Fully upgrade Health, Armor, or Ammo capacity.
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| Butcher | Perform 200 Glory Kills.
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| Combat tested, Doomguy approved | Reach Level 5 in Multiplayer.
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| E1M1 | Complete the first mission of the campaign.
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| Entryway | Complete the SnapMap Basic and Advanced Tutorials.
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| Every Nook and Cranny | Find all Collectibles.
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| Historian | Find all Data Logs.
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| Hot Swapper | Acquire all weapon mods.
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| IDDQD | Upgrade all Runes.
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| IDKFA | Earn the Masteries for all weapon mods.
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| Into the Unknown | Warp to Hell.
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| IPXSETUP.EXE | Win a Multiplayer match.
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| Juicin' it up | Kill 150 enemies while using Power Ups.
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| Knee-Deep in the Dead | Complete the campaign on 'I'm Too Young to Die', 'Hurt Me Plenty', 'Ultra Violence', or 'Nightmare'.
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| Momentum Shift | Upgrade a Rune.
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| No Rest for the Living | Play 5 published SnapMaps.
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| Outnumbered? No Problem | Defeat the Hell Guards.
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| Overclocked | Fully upgrade all Praetor Suit categories on a single campaign run.
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| Rip and Tear | Glory Kill all common enemy types in the campaign.
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| Shareware | Create and publish a SnapMap.
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| Shoot it Until it Dies | Defeat the Cyberdemon.
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| Specialist | Earn the Mastery for a weapon mod.
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| The Circle is Complete | Earn all Runes.
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| Thorough Shopper | Complete all Challenges for a single mission.
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| Timing is Everything | Use explosive barrels to kill 100 enemies.
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| Tinkering | Fully upgrade a Praetor Suit category.
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| Up Close and Personal | Kill 50 enemies using the Chainsaw.
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| What Else Ya Got? | Complete all Mission Challenges.
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| Who's Next? | Defeat the Spider Mastermind.
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