Already there is AAI Programmable Vehicles, but this mod consumes too much resources when using logical buildings to control units, and units use AI beetles and therefore their riding is inadequate. You should think about how to make these elements in your mod better if you designed this mod like RTS, of course.
By the way, the main character should be left, because in the global map is available RTS camera, through which I manage units with AAI Programmable Vehicles at a distance. And also in RTS there is usually a radius for construction, which can be expanded with the help of new buildings or under certain conditions.
