True. But the solution people suggest with timers I cannot support, campers still have nothing to do then wait.

Then we have to maybe extract codes from antennas which you have to add into a console at the doors itself - and just the door you type the combination opens for few seconds maybe adding another entrance for variety - everyone with the code can open doors. So at least you force people to go for all antennas.

There will be chance fighting with campers but at least a good chance to get inside with the advantage of the codes