Obscure Map Knowledge

TF2's Maps take a lot of time to develop. And a lot can change through the development of these maps, in this video I'll be showing and explaining various map oddities such as doorways not leading to anywhere, being able to shoot through shutters among other things.
Credits list for songs and clips used, etc:
pastebin.com/hncu9NHh

[@pijuka]

gugle, become a sidekick

[@Fofenho]

do u think if they kept the water on gullywash there would be fish that go glub glub

[@poawinnkgsa]

[@flareshmoney]

would be a catastrophe if there wasn't at least a few

[@eron_qt]

new flareshmoney dropped lfg

[@Veltek_]

funny and real

[@Dirtblokje154]

on Ghoulpit near point B the entire map renders out in a little side room. No idea why.