If you’re looking for a tactical shooter stay away but if you are looking for a fun cover shooter, Rainbow Six: Vegas 2 should scratch that itch.
Rainbow Six: Vegas is good on it’s own merits but does not represent what the series is known for. It’s a cover based shooter with lite tactical mechanics. No real thinking required.
Possibly the best tactical shooter to date, Rainbow Six 3: Raven Shield offers the ultimate freedom when it comes to planning and execution. A thinking man’s game.