many of the maps are pretty unstable with larger armies. they crash at slightly higher unit counts and its not cus of my pc or a mod.

Does it crash when you are starting the Battle? Or when the AI is climbing Walls?

Zhufbar map (defender) has no towers to build and the AI (attacker) sits on the entrance and doesnt advance.

God this Map is cursed. I fixed it yesterday and it worked. But now it doesnt. I will look at it again.

Aditionally in Zhufbar the attacker has no links to the edge of the map, ensuring that it cannot be reinforced.

Ok Zhufbar is fixed. I will look at Middenheims Wallcrashes next.

I find myself crashing to desktop in the Zhufbar map as soon as I actually start the battle. The map loads in fine, I can move my units about as well as my camera but when I click start battle the whole thing freezes up and after a little while the game crashes.

Hi. Are you the attacker or defender?. What Units does the enemy have?

Naggarond has a bug. After a few minutes into the battle everything freezes (except the camera) and the game crashes.

Hello. Same Question as above your Comment.

At the time I was attacking. No siege equipment. For context I did have 3 reinforcement armies coming in as well as I believe 2 enemy armies coming in for maximum army count. I'm reading here that may mess around with it?

Are the reinforcements coming from the other Wallside? This one is still buggy.

Ok I'm looking at the map as shown from the skirmish battles display:
My reinforcements were coming in on the eastern side of the map moving west. Enemy reinforcements were coming in on the southeast corner moving north. They already had troops inside. I tried deploying on the western side of the map, but that didn't change anything. The battle goes one for about....I wanna say 1-2 minutes before freezing everything but the camera and crashing entirely.

I will also note that when I turn your mod off and just use the default map that everything works fine.

The 2 maps I've tried thus far are bugged, Zhufbar and Karak Kadrin.

On Zhufbar, I was unable to bring in reinforcements at all during the battle, I tried moving the reinforcement marker around but nowhere seemed to work and they just didn't come in.

On Karak Kadrin, I ordered my flying lord (Drazoath the Ashen) to attack some enemy units on the gatehouse.
After defeating them he flew up off the walls as normal and hovered over the gatehouse, but I couldn't move him at all for the rest of the battle. In this case the walls on both sides of the gatehouse had already been destroyed, dunno if this is related of course.
This might be a bug on some vanilla maps but I've personally not experienced it.

I was the attacker in both cases.

Naggarond map crashes during campaing battle, when AI try to use ladders(