UndeadTNT

Piggyback Invade and successfully observe 10 enemy Fixers in Online Tailing

Animal Control Kill 300 Creatures

Fist Meet Ground Kill 100 Aliens with the Death From Above Super Power.

Hazardous Dukes Kill 25 Arch Dukes

Rip and Tear Glory Kill all common enemy types in the campaign.

Argent Overload Fully upgrade Health, Armor, or Ammo capacity

Experimental Tech Kill 25 Aliens with each: Dubstep, InflatoRay, Bounce Gun, Disintegrator, Abduction, and Black Hole.

The Seven Deadly Weapons Kill 25 Demons with each of the Seven Deadly Weapons

What's Yours Is Mine Pick 50 Locks

An Old Friend Acquire the BFG

Long Way from Texas Complete D-Day.

A very special day Kill 250 zombies with modified weapons.

Fourth and Forty Spend over 40 hours in the Simulation.

No raccoons in here Complete act 2.

IPXSETUP.EXE Win a Multiplayer match

Seoul Mates Complete "Induction."

Busy, busy, busy Finish 75 quests cumulatively.

Specialist Earn the Mastery for a weapon mod

Hackification Invade and successfully hack 10 enemy Fixers in Online Hacking

Plague of Gat Kill 1000 Demons with any combination of Supernatural Powers

Shoot it Until it Dies Defeat the Cyberdemon

Masshole Kill 300 People

Thorough Shopper Complete all Challenges for a single mission.

Advanced Soldier Spend your first Exo upgrade point.

Gotta find'em all Find 60 collectibles.

Traced Get tailed 5 times

Old Guns Complete "Old Guns"

All Too Easy Kill Zinyak in less than 5 minutes in 'Save the Planet'.

Gun-For-Hire Complete 10 Side Quests

Combat tested, Doomguy approved Reach Level 5 in Multiplayer

The Show Must Go On Complete The Show Must Go On.

Divine Intervention Complete Divine Intervention.

White Rabbit Object Escape 15 police scans

I Am Become Death Kill 1000 Aliens with any combination of Super Powers.

Tradecraft Join the Railroad

Outnumbered? No Problem Defeat the Hell Guards

Welcome to Atlas Complete "Atlas."

Twenty-Twenty Vision Spend over 20 hours in Hell

Print's Not Dead Read 20 Magazines

Knee-Deep in the Dead Complete the campaign on 'I'm Too Young to Die', 'Hurt Me Plenty', 'Ultra Violence', or 'Nightmare'.

Who's Next? Defeat the Spider Mastermind

Juicin' it up Kill 150 enemies while using Power Ups

The Molecular Level Complete "The Molecular Level"

Institutionalized Complete "Institutionalized"

The Challenge King Complete ALL of the Challenges.

Let's Bounce In Torment Fraud, hit 5 vehicles in a row without touching the ground

Subversive You stole an experimental super weapon from Merryweather... and gave it back.

The Daughters of Lalaia Complete The Daughters of Lalaia.

Lovable Reach Maximum Relationship Level with a Companion

Life in the Fast Lane Complete "Traffic."