Full list of all 12 DOOM (Arcade) achievements worth 200 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox 360.
Complete all levels on UltraViolent mode
Complete Episode 4 on 'Hurt Me Plenty' or higher
Complete Episode 3 on 'Hurt Me Plenty' or higher
Complete Episode 2 on 'Hurt Me Plenty' or higher.
Complete Episode 1 on 'Hurt Me Plenty' or higher
Win a Nightmare level in single player
Find a secret area of a map
Find all items in level
Complete any level
Kill all monsters in level on 'Hurt Me Plenty' or higher
Get 100 kills on Xbox Live
Get 50 kills on Xbox Live