ISAIAH-3000

Stick 'em up Stick it to a zombie by covering him in weapons and objects!

Assemble Your Crew Recruited Dean Domino, Christine and Dog.

Four Ring Circus Enter 4 different portals without touching the ground in co-op

Grand Theft Aero Complete the Mission The Horten's Nest

Full Frontal Complete the Game On Any Difficulty

Death from Above Use an airstrike to kill 3 enemies at once

Nobleman Give away a Delicious Ham

Fallen Comrade Find the Youngbloods in the Jungle

Defending the Ark Complete Defending the Ark

The Collector Complete The Collector

Light Up the Sky Light Up the Sky - Destroy 25 targets with the Ark's AA guns

Die, Heretics Kill 50 Chaos Space Marines.

Message from the Empress You performed a drop assassination from atop the Empress statue in The Knife of Dunwall

Pull the Plug Remove the Power Battery without destroying any of the sentry turrets

Red Carpet Get featured in the Best Play 3 times in Multiplayer

Sierra Souvenir Aficionado Collected 500 Sierra Madre Chips.

Asking for Trouble Taunt GLaDOS in front of a camera in each of the five co-op courses

Fearless Escape from The Daddy without using your flashlight

The Revolt Complete The Revolt

Podium Finish Win 25 Multiplayer Matches

Tower of Return Complete Tower of Return

TBoGT: Bear Fight Win the L.C. Cage Fighters championship. (The Ballad of Gay Tony)

Spinal-Tapped! Recovered X-8 vertebrae-pulse-de-sensitizer frequency!

Old Man Discover the Blue Ending

On Top of The World Climb to the highest spot in the game

Dark Void Complete Dark Void

PIRATES OF THE CARIBBEAN Booty Master Collect all of the PIRATES OF THE CARIBBEAN prize bubbles

Friend To The Fellow Man Give all five Sleepy Cat comics to The Director

Time Bandit Grab 5 Shields from enemies in single player campaign

The Big Bang The Big Bang - Destroy a Knight using a grenade

Cardiac Arrest! Recovered X-13 cardiac regulator sneaky suit!

Having a Ball Completed the Sierra Madre Gala Event.

Come on! Follow Me! Escort 8 survivors at once

In a Foreign Land Scouted the Zion Valley for signs of the White Legs.

Get Your Feet Wet Get Your Feet Wet - Buzz the water

Get to the Chopper! Awakened: Escape from Tau Volantis to the Terra Nova.

You're a Hit 20 Spikeshot kills in single player campaign

Special Issue Equipment Earn 10 medals that are based on Special Issue Equipment

Here, At the End of All Things Kill Daemon Prince Nemeroth.

Killer Chicken Killer Zombie - Kill 100 zombie chickens

Master of the Clean Kill Get 250 Headshots.

Deal Maker You purchased at least 8 favors in The Brigmore Witches

Make up your Mind Made up your mind... about your brain.

Outsmarted Completed Old World Blues.

Friend To The Sick Give Hank all five health tonics

Come Get Some Complete the SP campaign on Hard Difficulty

A True Master Earn 5 Gears in all Challenges of the Sky Fortress Expansion.

Pumpkin Patch Shoot 2 enemies in the head with a single bullet

Youngling Complete Jedi Temple - Apprentice difficulty

O Daughter of Babylon Crushed the White Legs.