Currently no one puts units on stone walls, because it gives no real advantages, and for opponent it’s just much easier to break the wall. So it’s a unique mechanic for AoE4 that’s kind of wasted.
The crazy idea: What if stone walls were only able to be attacked by Trebuchets and Bombards, and units could claim the wall by being the only one to have units standing on it?
This would make Siege Towers finally useful, and having units on the wall to protect it from being claimed would serve a purpose. There would also be more Stone Walls early in the game, and a bit of a wall climbing action going on until players get access to Trebs.
What do you guys think, would this make the game too static or the contrary?