Thrax33

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

Ghost Stories Escape. (Complete "Ghost Stories" on any difficulty.)

Historian Find every audio diary

Bob and Weave Counter an enemy's attack three times in row.

Never Go It Alone Recruit 5 Separate Companions

Hush, Hush Now Quiet a Screamer

An Old Friend Acquire the BFG

Skeet Shoot In the Main Campaign, killed 5 enemies while they are falling.

Making Faces Show the outside world that you're still alive

Merchant Collect 8 schematics

My Preferred Piece Upgrade a weapon.

Cannon Fodder Complete Chapter 4 on any difficulty setting

Seriously Good at This The player has completed the game on the Hard difficulty setting

On the Fly In the Main Campaign, killed 30 enemies while riding a Sky-Line.

IPXSETUP.EXE Win a Multiplayer match

Specialist Earn the Mastery for a weapon mod

Brave New World Rendez-vous in Fort Santa Monica. (Complete "Brave New World" on any difficulty.)

Through Mud and Blood Complete Through Mud and Blood

Normal Is Good Complete the entire game on Normal.

Tied loose end Deal with Tahir

Shoot it Until it Dies Defeat the Cyberdemon

I Gotta Believe! Complete Arcade Mode with PaRappa

Old Guns Complete "Old Guns"

Thorough Shopper Complete all Challenges for a single mission.

Bon Voyage In the Main Campaign, killed 20 enemies by knocking them off Columbia.

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

Hunter/Hunted Complete "Hunter/Hunted"

Uncontrollable Took every opportunity to be evil as Aiden.

Combat tested, Doomguy approved Reach Level 5 in Multiplayer

Story Teller Collect 75 Logs

Explorer Found all the bonuses.

True Believer Complete Chapter 5 on any difficulty setting

Give a Little Push Knock ten enemies off a high place.

Hoarder Completed a non-boss chapter without using any Super Moves

A Man Chooses Complete the game on Survivor difficulty

Tradecraft Join the Railroad

Vertigo Activate the Amplifier

Outnumbered? No Problem Defeat the Hell Guards

Shareware Create and publish a SnapMap

Now You Can Come In Find Camden

Harpoon Hurler Defeat Del Lago.

Brass Balls Complete the game on Hard difficulty without using a Vita-Chamber.

No Man's Land Make it to San Diego. (Complete "No Man's Land" on any difficulty.)

Surgeon Dismember 500 Limbs

A Better World Let every possible character die and chose to go with them to the Infraworld.

Homerun! Get a Homerun

Greenhouse Effect Complete Chapter 6 on any difficulty setting

Exterminator Kill the Leviathan

Socket to Me Socket a gem in an item.

Mind Over Matter In the Main Campaign, killed 20 enemies using Possessed machines.