So, I bought the game and played it last night. I went partly through the campaign and went so far as switching to the character "Dutch". It seems fun, but I'd rather wait to play co-op with the guys, so I stopped playing it. I need a backpack. lol I did play a little of the new mode, Firefight with George and Echoes. It was addictive and really, really fun. I ended up going to bed an hour after I wanted to because of that. So, did you buy ODST? What are your thoughts?