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Bacon! Kill a razorback boar using a Molotov cocktail

Knock You Out Do a stealth takedown on 30 enemies

Tonic Collector Collect or Invent 58 Tonics in the Physical, Engineering and Combat tracks

The Second Horseman Complete 'Safehouse' on Veteran difficulty.

Sea Legs Complete all naval contracts.

Found Cohen's Room The player has entered Sander Cohen's personal quarters

Master Blaster Kill 2 multiplayer enemies with a single explosive.

High Flier Kill 5 duskbats without touching the ground
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Butcher Perform 200 Glory Kills

Freefall Don't look down

Only God Can Judge Me Buy a shirt in the Nudle vending machine

Arkham City Sirens Drop in on an old friend

That's a Knife! Fully upgrade the knife

DedSec-A-Roni Ride a cable car

No Place Like Haum Finish Operation: Haum Sweet Haum

Exit Stage Right All the world is a stage

Time Paradox Kill Makarov and complete your mission

Bad Boys Hijack a boat

The Man in the High Tower Find and use the hidden cache in 'Heat'.

Chain Gang Perform the Serpent's Fury 3 times

Research PhD Max out all possible research

Call of the giants You sounded a giant horn.

Ain't No Stopping Do a bike race

Better This Way Customize the style of all the weapons on your radial.

Total Party Kill Kill 5 enemies with friendly fire

To the Nines Restore and equip a matching vestige outfit

Thread the Past Restore 5 vestige outfit pieces

Picking Up the Pieces Finish Operation: Looking Glass

The Third Thing Defeat Hartman

Schockhammer clip upgrade Unlock the Schockhammer clip upgrade perk

Up to the Challenge Complete 5 Challenges

Casey Jones Take down 25 enemies while riding on a moving train.

A sad tune You made someone feel better.

Turtle Soup You helped the turtles to the sea.

Informer Finish Operation: Limp Nudle

Windpipe You made the inventor dance.

In Style Buy the Gatorfeet Whine Country footwear

Laying Down the Law Kill 6 enemies with the Revolver without reloading

Switch Hitter Play for at least 2 hours as a male character AND 2 hours as a female character.

Legendary Hunter Hunt and loot 5 rare animals

Dogs. I Hate Dogs. Kill 20 attack dogs with a knife.

Armor upgrade I Unlock the Armor upgrade I perk

Diamond Hard You cleaned out Vangelico to pay back Martin Madrazo.

Payback's A B**** Defeat Straga

Man versus Machine Alert the enemy helicopter in 'All Ghillied Up' and take it down.

Sight Beyond Sight Collect the Mask of Shadows

Stay Away From The Light Revive another player.

Freedom Escape Castle Wolfenstein

Pimp My eKart Get all the eKart upgrades

Sabotage Finish Operation: Hacker War