Outwitters 2!

[CombatEX]

I didn't notice your suggestion before, but water hexes that only certain units can move on gave me an idea. Perhaps you could have a special kind of terrain that only heavies can travel over. Might actually make them more worthwhile for teams besides Adorables. Of course, map design would be even more important than it already is (which is another reason Outwitters 2 having a map editor would be great as players could take some of the map design work off of OML's shoulders).