anyone want to play odst fire fight or Legendary campaign on XBL?

i haven't beaten ODST on legendary, which would be cool, or if anyone wants to play firefight then add me, my GT is: Red Roach 5
PS, my microphone is broken in a weird way, i can hear what people are saying but i cant talk.
 
I'll be on in about 5 minutes, and if you have any friends online invite them too.