Not So Bad
Beat every level on Nightmare in co-operative mode
Unlock all trophies in DOOM
I'm the Man!
Beat DOOM in under 2 hours
Get 100 kills in deathmatch
Guns Are For Wusses
Get 25 kills with your fists in a single level
Complete all levels on UltraViolent mode
Get 100 kills on Xbox Live
Beat all the levels in "Inferno"
Complete Episode 4 on 'Hurt Me Plenty' or higher
Kill only a single enemy with a shot from the BFG
The Shores of Hell
Beat all the levels in "The Shores of Hell"
Cookin' With Plasma
Kill 5 enemies in 5 seconds with the plasma rifle