I'm reporting this becasue with the release of AH3 from time to time when helping attack a field, the vehicle hanger acts impervious to bombs. It seemed random across different terrains but, not often enough to be a game stopper.
I have an offline only gunnery and bombing practice terrain that I just set down 5 "VHH2" objects owned by field 1 and set as "Veh Hgr", "Can Collide". If there is a maximum number of VH objects owned by a single field limit I have exceeded and that causes this problem, I understand. The problem is randomly across these 5 VHH2 which are ganged together in a 1 mile square, one each corner, 1 in the center. At the beginning of a new offline session I can target any one of them and destroy it. From time to time one of the remaining 4 will become indestructible or need far more bombs to destroy it than the default setting of 2.7813. I set the downtime for many objects including these to 1.00 to aid in bombing practice.
If you require it I will post a copy of the terrain file for you.