Rainbow Six Vegas,
Call of Duty 4?
Looking for the best of these three in your opinion. All would be for PS3. I've never played any titles from either series, so I'd appreciate your thoughts on why you would or wouldnt recommend one of them.
I should mention that I'm NOT looking for online or multiplayer stuff. Just looking for the best singleplayer experience. I like games that have more strategy, tactical operation and depth, rather than a run and gun kind of thing, if that helps at all.