Rainbow Six Vegas 2 >= COD4 ???
Got it yesterday afternoon. It's what you'd expect. Vegas with an upgrade in graphics and expansion pack. Added sprint also. Compared to COD4 it's more slow paced, more tactical, and a bit more difficult online. If you're a fan of the series and have the dough I'd say get it. It's more of what you know with some improvements. If not or lacking in funds I'd say skip it and save up for GTA4. It doesn't redefined the FPS so you aren't missing anything and it's all you've seen before. I find myself going back to COD4 for a few matches a couple of times. I feel for a game to be a "home run" it has to make you forget about playing your others for awhile.
I will add that a plus is there's no martydom cheapos. :)