Ok, so I've been reading a book, not only about the famous battle itself, but about the whole campaign around it. What really facinates me is the dynamics between concentrating units for battle, and spreading units for movement and thought it would make for a great AT scenario.
What I need is make the stackpenalty apply for all kinds of movements. As it is now, there is a penalty to move into hexes that had a battle with large stacks, and this penalty increases for every new battle in the hex on that turn. I'd like this penalty to increase for every unit that enter the hex, regardless whether there's been a battle or not. Preferably, this penalty should be increased before it is applied to the unit itself, that way you can't put all your forces in one unit and move it about as you please. I also like the size of this penalty to depend on what kind of terrain it is on, that way it could be possible to transport large forces on good roads that would completly clogg up the lesser roads.