Stop Glitchers With Double Walls

You probably dont know what i mean when i say that but in train i remember seeing a video that if u go in the like metal pillar things in the train map u cant get out

like its solid on the inside and the outside

so instead of being able to get out when ur inside something make it so that if u go in u cant get out and since nothing can get out u cant shoot through it either

i would think it would be much more boring if all u can do is sit there the whole game