Is the test result should be different in co-op multiplayer mode?
Because I often play SP using co-op MP. The co-op mode allow us to set ticket ratio, so we can play longer in every round.
So far, I haven't experienced any CTDs when playing on rebuilt or upgraded maps. The only CTD I experienced is in Sidi Bou Zid, which I don't know what really happened.
The Purple Heart Lane, Pointe du Hoc, Meuse River, Operation Hyacinth has been extensively tested by me, using more than 500% ticket ratio. Didn't even show any significant bugs even in hours of gameplay. Bots don't wait/camp in bases anymore, they actively move towards the objective at strolling pace. Never seen one get stuck, the navmeshing and pathmapping is brilliant. Tanks and other vehicles do hesitate at narrow passes though, probably it is a BF2 thing, most BF2 maps are pretty open and the roads are wide.
The best result so far:
I got hunted and experienced intense firefight inside a building for the first time. They really explore the building, looking for a clear shot at you. Thankfully, they are bad at grenade throwing.