I also heard there weren't bottle neck moments like the silos in MW that I HATED. I kinda like that all the achievements are for the single player game. Seems like it would make it where people aren't just constantly trying to skeeze achievements online.
Grahamhsu, it's going to be a little while for me. But I'm sure you'll be playing it for a while. Definitely no later than Christmas, I can't wait any longer than that. But I'm down for some co-op when I do get it.
edit: Screw it, I can't resist. I'll have my copy of Left 4 Dead 2 by this evening.
You guys, we need to get some leaguers together to kick some zombie ass.