to be honest, Ive never been a fan of the halo series. it has a great story, but none of the graphics, gameplay,vehicles, or multiplayer were all that revolutionary. the story was the only thing that hadnt been done before. it's still a fun shooter, but nothing special.

i will admit that co-op on halo 2 is some thing that could make or break the game. there arent enough co-op action games out there, and if they do it right than i could respect it more. Unfortunately my speculation is that it will be done the cheap way: story revolves around 1st player and the 2nd just runs around and shoots stuff. if the 2nd character is incorperated into the storyline this will be the next greatest shooter, but i doubt it.