for example say you have a group of knights, or cuirassiers, and they are from an equatorial area and then they have a movement penalty if in an area that is quite snowy, and perhaps you can choose to burn the land behind you but you'd move slower, and you can choose to have your men live off the land or bring supplies so then if you live off land you'll move quicker but be much weaker when chasing a unit that is burning what's behind them, so basically I'd like to see Napoleonic warfare and maybe you'd have to research it during the early modern or the industrial eras