bjelda

Taste Of Your Own Medicine Kill 25 enemies while supercharged

Nanosuit Veteran Complete 3 of 7 levels on Veteran difficulty

Hunter-Gatherer Retrieve 10 arrows from pinned enemies

Stick Around Using the Predator Bow, pin 10 enemies to walls with arrows

Inside Job Kill 10 enemies using hacked sentry guns

Arrow to the Knee! End an enemy's career as a CELL operative by wounding him in the knee with an arrow!

Bang For The Buck Kill a deer using explosive arrows

Perk Of The Job Save a Nanosuit module package

Poltergeist Kill 10 enemies with thrown objects without being detected

Who Needs Rockets? Post-Human: Take out an attack helicopter using the Predator Bow

Staying Sharp Complete Tutorial

World Saver Finish the campaign in any difficulty

The True Measure of a Hero Complete Gods and Monsters

Post-Human Warrior Kill 10 enemies in a single Supercharge boost

Belly of the Beast Complete Only Human

I'll Have That! Rip off and use all alien weapon types

Ping Pong! Only Human: Kill all Pingers

The Gibson Complete 20 hacking challenges

Brink of Apocalypse Complete Red Star Rising

Nanosuit Ninja Perform 20 Stealth Kills without alerting nearby enemies

Be a Pro, use a Bow! Kill 10 enemies with every arrow type

Turning the Tide Complete Safeties Off

Maximum Strength Kill 25 enemies using only the Nanosuit's enhanced powers instead of guns

Off the Grid Complete The Root of All Evil

A Flawless Getaway Complete Welcome to the Jungle

Clever Girl! Stealth kill a Ceph Stalker

Welcome to the Jungle! Complete Post-Human

Improviser Kill two enemies in one strike using the environment

Bowling for Gibs Gib three or more enemies with a single rocket explosion.

Screen Wipe Obliterate 50 enemies with a single shot of the Calamity Blade.

Evilution Reach the end of 'TNT: Evilution'.

Sigil Reach the end of 'Sigil'.

Master Levels Reach the end of 'Master Levels for DOOM II'.

Legacy of Rust Reach the end of 'Legacy of Rust'.

DOOM II Reach the end of 'DOOM II'.

No Rest for the Living Reach the end of 'No Rest for the Living'.

Plutonia Reach the end of 'The Plutonia Experiment'.

DOOM Reach the end of 'DOOM'.

A Man and a Half Get 20 kills using the berserk powerup in a single level.

The Only Thing They Fear Is You Complete any monster-filled level with 100% kills without getting hurt on Ultra-Violence or higher.

Overkill Kill only a single enemy with a BFG9000 blast.

Skeet Shooting Kill 4 enemies in 1 shot with the Super Shotgun.

Shoot It Until It Dies Finish off a Cyberdemon with the Pistol.

Hoarder Finish a level with 100% items picked up.

Burning Out of Control Complete any monster-filled level with 100% kills, items, and secrets.

Until It Is Done Get 100 Chainsaw kills.

Alternate Dimension Find a secret level.

Cookin' With Plasma Kill 5 enemies in 5 seconds with the Plasma Rifle.

Guns Are For Wusses Get 25 kills with your Fists in a single level.

More Like a Dream Complete a level on Nightmare difficulty.