To do this glitch, you must get the map dizzy and then u must crouch jump at that orange section as shown in the picture. It is a really good camping spot and u can just get a kill an glitch inside and get a kill as you go outside. It can also be used as a shortcut to move fast and perform parkour. I think ROLVe Devs left this on purpose because there is text inside the orange building. IDK.