The types of changes they contemplating are along the lines of:
Player: “It doesn’t make sense that a Mortar unit can try to attack an aircraft. Realistacally, that would be impossible”
WotC: “New rule, artillery-type units cannot target Aircraft unless they have the Anti-Air ability”
Player: “In WWII, sniper-vs-sniper happened, I saw it in Enemy at the Gates”
WotC: “New rule, units with superior camoflage can target other units with superior camoflage”
Player: “These new 3 inch map hexes are really big, and my soldier looks lonely in there.”
WotC: “New rule, you can now have three units per hex instead of two.”
Lather, Rinse, Repeat…
This can get carried away really fast and turn an 8-page rule book into an an 8-page rule book w/ a 32 page appendix. :x
The rules make sense now although some of the aircraft rules could be improved. They didn’t account for this because the first two sets had no aircraft. Like the problem we’ll have soon on the Chalenge game, hull mounted cannon firing on an aircraft, never could happen.
I kind of like some of the expanded rules but they make things complicated. Overwatch is a good one. For you guys that don’t have the expanded rules, basically instead of moving during your movement phase or attacking during the attack phase you can declare up to two tanks or antitank guns on overwatch. You may not move or fire these units and they must be faced in one direction. If an enemy units moves in front of (that would mean just down the line of site, one row of hexes directly down the facing) you may attack that unit.