It hasn't been too long since the last installment in Tom Clancy's Rainbow Six came to consoles. Rainbow Six Vegas was an excellent game, and the first to really get a good handle on how to adapt the hardcore tactical gameplay of the PC games for console gamepads. (We'll just pretend that Lockdown never happened.) Now, though, Rainbow Six Vegas 2 has appeared, and promises to evolve the franchise with new gameplay features and a conclusion to the storyline that started in Rainbow Six Vegas.
On the whole, though, if you've played Rainbow Six Vegas, you'll feel right at home with Vegas 2, which plays very similarly to its predecessor. In it, you take on the role of Bishop, the team leader of a Rainbow Six squad, as you take on terrorists throughout Las Vegas in a story that parallels that of the original Rainbow Six Vegas. Players of that game will remember that a mole was discovered in the Rainbow Six operation: a soldier named Gabriel had betrayed his comrades. In Vegas 2, you re-encounter Gabriel and are forced to shut down his terrorist operation once and for all.
GameSpot's Game Guide to Rainbow Six Vegas 2 will give you some tips on playing through the game, as well as a guide to the single-player portion of the game.