"Though, I wish Bungie would focus on the campaign than taking an advanteage on it's multiplayer." Halo 3, don't repeat!
There is no story, but you do wish that Patrick Stewart was there to tell you one (I am comparing Patrick Stewart acting Uriel Semptim in OBLIVION). What the heck is up with this? No story means just straight up Online play. I say that is just crap. I wish Bungie would take an expanisive pack on the story, but I guess they have to be cheap.
The sound is the same as Halo 2. You still have the raining Battle Riffle noise to the BOOM of the Scropian. There is no sound improvement, and there isn't a big deal about the music because there is no music, damn you Marty! Damn you!
The graphics still looks like the same. There is not a single improvement on the graphics, but there is some better value in some maps than the old maps, but not a naked eye change. You still see the drunken pixels when you zoom in with the sniper. But the graphics are basically the same since 2004.
The gameplay is a huge change. Get your grenade feet ready because grenades will occur frequently. The horrible part is that the explosions may kill you in one simple frag. Yeah, but the sad part is that the maps are not made for the explosion, so get ready for some, " I better wait for five seconds respawn because I am screw." situation.
Same game, horrible maps. Halo 2 is just nothing but cheaters, so I don't even suggest you even play this game anymore. But hey, this is maybe the best suggestion, if you have friends that don't have Xbox Live, you should buy this game. If you do have Xbox Live, you can get if for free. Believe it or not...