I'm slowly grinding my way through the achievements on Gears 2 (up to 1220 at the mo) and there are a few online that I don't have. Is it possible that any of you are looking to build on these (and it's 20 x xp until the 14th November 2011) and if so, are you up for playing along to get them?
I'll make a note of the ones I still need and post them here tomorrow - I'd appreciate the help!