There are most likely more potential similar wall glitches, but this is the one I have noticed that is very easily reproduced.
Once inside these spots there are few wall visuals so it is possible to keep a near 360 view of an airfield while being completely invisible and protected from bullets. Again I stress that this is already being abused heavily.
I can produce screenshots or video of these glitches if requested. As well as video of logging into abusers sitting inside the walls.