Complete the first level
Shoot down 30 projectiles
Acquire all weapons
Put out the fires in the BFG central chamber
Travel to Hell
Collect all of the DoomGuy Dolls
Complete the single player campaign on any difficulty
Teleport 1000 times
Telefrag into 25 demons
Telefrag into a Possessed Engineer and explode
Complete all of the hacking minigames
Complete the first laser minigame
Use a Weapon Upgrade Station
Use an Argent Cache
Fully upgrade a single Combat Chassis subsystem
