Interesting thought on defense penalty, or at least no bonus, for armour.
Fighting for a remote outpost on a high alpine peak is quite different than fighting around the populated areas of the alps. Here in New England, very little of our mountainsides are that exposed. The Golan Heights are somewhere in between.
Some mountain fighting is indeed like The White War, and no place for armoured vehicles:
https://www.smithsonianmag.com/histo...ins-180959076/
That's interesting for a scenario, but by and large Ogre doesn't shine at its best with a pure infantry slog; that's not what it was designed for.
The big underlying question for all the different approaches of how to play on M2 is what type of gameplay do you want.