Destructoid voice their opinion:
"Scheduled to hit the PS3, 360, and PC next March, it doesn't look like Ubisoft's RSV 2 is set to offer many surprises. What we could have assumed: the game will contain an expanded multiplayer mode, as well as an expanded co-op experience; there would be new weapons and armor; and the game would take place in Las Vegas.
In a press release issued today, our the complete lack of surprises have been confirmed. That's not necessarily a bad thing, as Rainbow Six Vegas was more than a solid title, and one that offered a top-notch tactical multiplayer experience. On that front, Ubisoft are offering 13 new maps, two new adversarial modes, and an improved matchmaking system. Players will also be able to create their own identity, which they'll be able to use in both single-player and multiplayer modes; progress or rewards gained in the single-player game will be reflected in multiplayer, and vice versa.
Besides Ron Workman getting drunk in the Luxor and yelling at strangers about how Criss Angels "floated to the ceiling," I didn't realize Vegas had such a terrorist problem. You can find more fancy details about the game's improved AI and more in the press release."