The second installment of probably the most known game to hit the xbox...
The physics of this game have changed a little from the first one...if feels like Master Chief responds a little differently compared to the first, and he can also jump higher. Other than that the controls have remained the same and players of Halo will fall into this new feeling in a matter of minutes.
Most of the weapons from the first have returned, as well as a few new additions, such as the ability to weild the Plasma Sword that you would find enemy covenent using. Also the ability to dual-weild certain guns has been added, allowing you to open up a bigger can of hurt upon the Covenent you will face on the battlefield.
All of your favorite vehicals make a return, but once again there are also additions. One addition is the ability to use the Covenent tank, which can be devastating if used correctly. Also players may steal vehicals by jumping near it and pressing the designated button...if succesful they will throw the driver off/out of the vehical and begin to drive it. This is useful for aquiring vehicals you want without damaging them.
Not quite up to the level that Halo was, but it is still definitely worth a play if you liked the first Halo, or just like FPS's.