Warning: this is meant as a good-humored, yet carefully considered expression of some of my pet peeves. Not be taken TOO seriously, but if you feel that I'm way off track, feel free to pound...
We all know that the fastest (if not always the safest) way of getting vehicules from point A to point B is to use roads (when available). When the road between A and B contains many curves and one wants to send a whole column of vehicules, plotting the movement of each vehicule can become pretty tedious. Solution: something like a "stick to road" command. Select vehicle, click on destination, et voilĂ , it makes it there automatically using the road. Could be a "toggle" state, like buttoned/unbuttoned, which could be overidden by the TacAI in case of necessity.
Another problem is the utter chaos that befalls any column of vehicules in movement. Different top speed, different experience level (thus of delay before start) turns the move into a stop and go festival (ever notice that there is only two speeds: full steam ahead or full stop). Again my solution: a "convoy" command whereby selected vehicules would make an effort to synchronis their movement. Drawbacks? The command delay would be that of the least experienced unit and the top speed that of the slowest vehicule. But at least the column would retain its coherence.