I like the idea of a transport unit that speeds forces up. Not only a paratrooper like unit air transport unit, but arguably more importantly something like a transport truck that speeds up towed units. Built in either TP or Barracks, and attaches to one of any tower unit (like arty). Maybe have it where you can convert from a truck mode to normal, but still have the same idea.
CarKing the 6th of the Abrahamic Caliphate