It’s very frustrating not to be able to build a new AT gun, AA gun or MG nest because you already built one before in part that is not even accessible anymore because the attacker has capture the position.
Rally point get destroyed when you build a new one. Why not other structure?
The best solution would be for me to reset the number of structure you can build when one point is captured.
(So the AA gun, AT gun, MG nest stay in the game, useless, but are not magicaly exploding)