One thing that I wish someone could do or figure out is a way to make it so you can have your units not only go over a bridge/walkway, but also under it at the same time. I'd love to do battles on a map where your units could duck under a bridge to avoid being shot at, or run under a walkway to get behind the enemy above them. Why nobody's tried to figure this out, not even the makers of this game, I don't know. Like I said, it just might not be possible.