i have even more ideas id like to put out there if youre still thinking of going through with this:
vehicles
>ghosts
Ghosts should be bots, similar to horses, boats, and tank turrets. Not only will this make the ghost control 50 times better, but, to my knowledge, it should allow you to give it working turrets.
>tanks
Ignore wraiths entirely.
Make it so scorpions have an open driver's seat, similar to CE, in order to allow marksman to shoot the driver. An open roosterpit means a tank can be neutralized by a sniper or a few jackasses with assault rifles, instead of requiring another tank or heavy weaponry to destroy.
>warthogs
Three classes: Machine gun, rocket, and troop transport.
Machine gun hogs and transport hogs are obvious, one fires bullets really fast and the other is a killtacular on wheels. I imagine the rocket hog as behaving more like Halo 3/ODST missile pod turret than the CE or 2+ rocket hogs.
just some ideas though
anyone got anything they'd like to add?