I find this annoying too, don't get me wrong it's lovely looking battle-maps you get, but the trees just get in the way too much to the point where you can't see more than on or two men in one unit when zoomed right in. As a result i find it nearly impossibbile to carry out coherent plans in those environments as I often have no idea what any of my own or the enemy forces are doing or even where they've got to when they've moved from their original positions.