A few other things:
So I put the GPO back to see how bots work with the layout and vehicle loadout (Vossnack) and noted that bots attacked single bases in force rather than fanning out, explaining the meat grinder of the church base.
Also, bots seldom spawn at the rear bases if they have the foward bases. A few do eventually, but so rare, that main battle tanks trickle into the fight one at a time.
There is also a small path issue at the base south of the Church base, where bots get stuck against the barn, next to some boxes. Its rare, and they get out eventually, but it exists.
I also watched a JagdPanther suffer to leave the German main and realized that, out of navmeshing, someone needs to go back to 2.2 to get the tank motion template and completely overhaul what we currently use - Tanks move BADLY!
Remember Goodwood, and how tanks used to come storming through the bocage at the rails in force, and what they do now?
SO armor is NOT a navmesh issue in this map at all! Its just terrible tank motion - AI.
I did notice that in Hurtgen, bots also dont fan out enough, and seldom use the mgs, not sure if that is ai also or not, but I think bots holding a base should be made to spawn on mgs, although, I will advice those on Hurten be locked to German since they all point the same way, same goes for the church mg in Vossnack, the 88, and the trench AT gun overlooking the church, spawn-able for bots.