CausticVariation

Don't You Die on Me! Revive another player in Co-op mode

Rip 'n' Tear Slay 5 zombies with a supercharged Ripper, and bisect 5 more with a Sawblade Launcher

The Elusive Elder Dragon Earn the right to take on three-star master rank assignments.

Just Business You got the information you needed from the Rothwild Slaughterhouse

Ace Port Royal Ace Port Royal

Skilled Steamworker Send the Steamworks into overdrive.

A Different Beginning Clear Chapter 1, "An Oath."

Prank Call Lure an enemy with a phone call and lock them in a room. (Ch. 1)

Two Sides of the Same Coin Win 10 times.

Thrifty Painter Complete Act 3: The Mission firing less than 125 paintballs

Bridge Building Complete all test chambers in the Hard-Light Surfaces co-op course

Judge, Jury and Executioner Defeat 10 psychopaths

Narbacular Drop Place a portal under your co-op partner while they are gesturing

Justice Served Complete Overtime Mode

An Ancient Antiquity Do hard time.

The 1% Carry at least 8,000 Cash at one time

This Is Your Brain Discover every location in Vaas' mind

Overclocker Complete Test Chamber 10 in 70 seconds

A Memorable Performance Earn a Gold Rating in a Multiplayer Match

Freudian Field Day Unlock all weapons in Vaas' Armory (Solo Game only)

Epic Tier 4 Engineer Complete the game in Classic Mode.

Masquerade Have 10 zombies with masks on at once

Ace Pirate Town Ace Pirate Town

Not as it Seems Clear Chapter 2, "Crossing Paths."

The Betrayal Severed: Complete Chapter 1

Indomitable Spirit Earn the right to take on four-star master rank assignments.

Confronting the Unknown Hunt your first variant monster.

Master Spy Collect all the Intel documents in the single player Campaign.

Dark Forest Complete the Dark Forest on any difficulty

Tough Guy Collect all combo cards from psychopaths

Survivalist Complete the game in Pure Survival Mode.

I Rule This Kingdom Escape Vaas’ mind with a score of at least 25,000

The Sacrifice Severed: Complete Chapter 2

Ace The Frigate Ace The Frigate

Air Show Perform 2 aerial gestures before touching the ground in co-op

Take 'Em All Down Defeat 100 agents.

Dear Diary Collect all of Vaas' Diary Pages

On Track Complete a tracked challenge in a Multiplayer Match

Missing Pieces You obtained Delilah Copperspoon's identity from Thalia Timsh

Easy Come, Easy Go Steal the Arasaka medical truck or deliver 10 vehicles to El Capitan.

The Old Everwyrm Earn the right to take on five-star master rank assignments.

Puff, Puff, Vaas Collect all of the Vaas Chibis

Successful Launch Kill 10 enemies with the Grenade Launcher in Multiplayer

Remodeler Change your room's interior for the first time.

So Much For Poetics Collect all of the Visions in Vaas' mind

Interior Decorator Have 50 different types of room decor to choose from.

Peng Me Again Severed: Find the Peng treasure in Severed

Gesticul-8 Perform all 8 gestures of your own volition in co-op

Experienced Rider Use Raider Ride many times.

Ada the "S+"py Complete Separate Ways on Professional mode with an S+ rank.