EPISODE ONE
Complete Episode 1 on 'Hurt Me Plenty' or higher
25 ✓ January 23rd, 2009
NEOPHYTE
Complete any level
20 ✓ January 17th, 2009
SCOUT
Find a secret area of a map
5 ✓ January 17th, 2009
HOARDER
Find all items in level
5 ✓ January 19th, 2009
CLEAN SLATE
Kill all monsters in level on 'Hurt Me Plenty' or higher
5 ✓ January 17th, 2009
RAMPAGE
Complete all levels on UltraViolent mode
35 
EPISODE TWO
Complete Episode 2 on 'Hurt Me Plenty' or higher.
25 
EPISODE THREE
Complete Episode 3 on 'Hurt Me Plenty' or higher
25 
EPISODE FOUR
Complete Episode 4 on 'Hurt Me Plenty' or higher
25 
DESTROYER
Get 100 kills on Xbox Live
10 
NIGHTMARE
Win a Nightmare level in single player
10 
ROOKIE
Get 50 kills on Xbox Live
10