So with Halo: Anniversary coming out next week I've been going back and revisiting the Halo franchise a bit. While doing this I saw that I was only one achievement away from S-Ranking ODST, 200k in Firefight on Security Zone. I was hoping there might be a few other people who still needed that achievement and would be game for trying it tonight.
If that sounds like you, hit me up on here or on XBL. I'll be online tonight until roughly 3am Central.