It looks graphically like it could be in halo 2

It should be fun to play with and I'm sure it;ll have physics like the halo 1 warthog whilst the warthog will have similar physics to its halo 2 counterpart (Even though it sucked).
One thing that may suck is CTF...While it'll be great for Mr. Offensive; rushing in and grabbing the flag and rushing off again, what will it be like for Mr. Defensive? If its hard for a rocket to hit it and the best weapon is a spartan laser, it'd be easy for the mongoosee to jump off and grab it to restrict the other team from getting it (Kind of, thankfully thats being changed in halo 3).
Shooting out tires would be a humerous and slightly more balanced thing (But more than one bullet to the tire would make it better) so it causes them to flip.