BlueSogeking

It's Super Effective! Headshot an Enforcer with Piercing Ammo.

Feel the Heat Kill all 4 tanks on the overpass with the Javelin missile in 'The Bog'.

Five Fully Upgraded Weapons Fully upgrade five weapons

Good Samaritan Revive a teammate in a multiplayer match.

Wake Up Call Help Leo out of a tricky situation without getting caught.

Crafting Iron Lice Crafting Iron Lice

Audiophile Rediscover some sweet tunes for the new world. Find all hidden MP3 players. Host only.

Perk-olate Unlock the first level for all Perks.

Castle of Teslagrad Castle of Teslagrad

Poacher Hunt and skin a rare animal.

Chill Out Freeze and Shatter Kill 100 Aliens with the Freeze Blast Super Power.

Karma-geddon Kill 50 zombies using a vehicle.

Broken Umbrella Witness the true ending.

About Time! Complete 'Welcome Back'.

aMAZEd Beat the Labyrinth without dying or failing

My Little Fortress Make Prosperity better than ever! Build all Infrastructure upgrades available. Host only.

Lost And Found Uncover the secret of Arkham City

Mano-A-Mano Defeat Titan henchman without using Batarangs (any play mode)

Actor-Turned-Politician Do everything you can for your Veep -- Quests, Loyalty Missions… everything.

Knight Ridden Finish Operation: Cyber Driver

Tower of Teslagrad Tower of Teslagrad

Maximum Stopping Power Upgrade one weapon to the max.

Lights Out Kill 10 multiplayer enemies using your melee attack.

Betrayed Complete 'All Hands On Deck'.

We Always Had Faith In You Obtain all the Trophies.

Standard Communication Grid Wiretapped the Delray Hollow Smack Racket

Retro Shooter Complete any level without reloading your weapon (excluding 'The Coup' and 'Aftermath').

Sandstorm We are legion

Poodle Skirt Complete 'Hello Teacup'.

You Wouldn't Steal a Policeman's Helmet Hijack twenty police vehicles.

Adventurer Complete a match in all multiplayer modes.

Keen Eye Unearth 40 Survival Caches

Dead or Alive Complete Soot's Final Encore quest.

Raiding Barbarians Raiding Barbarians

Retake Wallstreet Rescue Keith from Buck.

The Tower of the Elephant Kill something by standing on its head

Roboteer Hack a robot

Buzzkill Kill 10 brawlers with any saw launcher. They never saw it coming.

You Chose... Poorly Surrender when given the chance.

Have I Told You? Survive the encounter with Vaas and escape.

Raising the Bar In the Main Campaign, upgraded one attribute (Health, Shield, or Salts) to its maximum level.

Taken for Granted Kill Vaas.

Love the Boom Kill 4 enemies simultaneously with one explosion.

Fully Researched Bouncer Fully research the Bouncer

Improper Use Kill an enemy with the Repair Tool.

Higher Than a Kite Use your wingsuit to reach the Southern island.

The Devil's Dues Upgrade one weapon to the max

Renegade Melee 5 enemies off a ledge

Satan Punchers Beat the game

Keymaster Complete 'Batteries Not Included'.