Looking for buddies! (X360)

Hey all! If anyone has any of these following games and would be down to co-op or do mp from time to time (mainly for achievements, as I'm a huge hunter and it's one of the many frivilous things I have on this Earth that makes me feel slightly accomplished), but I'm down for anything just in general as well! My GT is Donut Sack if anyone is interested. Looking for people to play the following with:

• Battlefield Bad Company 2/BF3

• Borderlands 1/2/Pre-Sequel

• Brink

• Call of Duty WaW/BO 1/MW 1/2/3

• Castle Crashers

• Dark Souls 1/2

• Dead or Alive 4

• Dead Rising 2/OTR/Case West

• Forza Horizon 1/2

• Gears of War 1/2/3

• GTA IV

• Left 4 Dead 1/2

• Minecraft

• Mortal Kombat 9

• Naughty Bear

• Portal 2

• Red Dead Redemption

• Soul Calibur IV

• Splinter Cell Blacklist

• You Don't Know Jack (2011)