driving the convoy vehicles would be fun, but like theyre more designed to be infiltrated than be solid pieces of vehicles(like its got lifts and opening doors and stuff)... if you can drive it and they can infiltrate it and you can crash it into cliffs and everything inside it gets messed up, which might not be impossible when they have good enough physics...
or better yet, like a conquest map where the vehicle is moving, but players can not directly control it because its course is pre-programmed, but other vehicles can spawn at locations near to it and you can catch up with it on fast vehicles , or spawn inside the bay near the back of the repair vessel and kind of get dropped out the back...
say, at the speed that the convoy vehicles are supposed to be moving, how long do you think that it would take for them to go across the distance of a big onslaught map like dria