Not much added on from Gears of War.
The gameplay hasen't change, but since it was so good last round, no surprise that Xbox didn't change it. The sound is also much the same, but once again there is a amazing sound track, and the voice acting comes back with much success.
The Story Mode Features no "new concepts" as with Co-op.
However, the multiplayer is as good as ever, with massive maps, magnificent features, and more players.
If you have played Gears of War one you now what your getting into in Gears 2, its an intense, mature addictive first-person shooter that will have you playing multiplayer on Xbox Live for hours on end.