i kind of liked all of the alternatives exept run away like a crying imperial guard, but in the end a last man stand rocks, even though a successful ambush is really nice and rush head of aswell as long as there arent a barrage waiting around the corner, then its quite lame
think one of the levels in the old game warhammer chaos gate in the single player campain had some vehicles, not sure though, was some time since i played it
otherwise i would say starwarsish like in the 3 first made movies