I've reported this issue 3 times since season 1. Players continually and increasingly get into areas of buildings that are supposed to be restricted. This done with either teammates or vehicles forcing players to pass through walls and barriers. Players can then kill opponents without being able to to take damage themselves.
to resolve this issue they'd have to add extra layers of wall to every closed building in the map, which would take up a lot more byte space. it's not happening, just let the cheats have that game.