Just Getting Started
Reward: 10 Points
Objective: Complete any level in Single player

Rip and Tear
Reward: 20 Points
Objective: Complete any level on 'Nightmare' in Single player

Superior Firepower
Reward: 25 Points
Objective: Complete all levels on 'Ultra-Violence' or higher in Single player

An Important Looking Door
Reward: 10 Points
Objective: Find a secret area of a level in Single player

From Earth To Hell
Reward: 25 Points
Objective: Complete all levels in 'DOOM II: Hell on Earth' in Single player

And Back Again
Reward: 25 Points
Objective: Complete all levels in 'DOOM II: No Rest for the Living' in Single player

Burning Out of Control
Reward: 15 Points
Objective: Complete any level with 100% kills, items, and secrets in Single player

Destroyer
Reward: 20 Points
Objective: Get 100 frags in Deathmatch on Xbox LIVE

The Great Communicator
Reward: 10 Points
Objective: Get 20 kills using the Chainsaw in a single level in Single player

A Man and a Half
Reward: 10 Points
Objective: Get 20 kills using the Berserk Powerup in a single level in Single player

You Have Huge Guts
Reward: 20 Points
Objective: Kill a CyberDemon using your fists in Single player

A Really Big Gun
Reward: 10 Points
Objective: Find a BFG in Single player