I...umm...don't even know what I'm looking at. I had no idea the models could even do that XD
You can do this yourself by doing a 180 and right-clicking your way over the spawn wall as soon as you start the game. The longer you fall, the more screwed up the graphics get. You'll only see it in your hand and gun though.
Lol I knew you could get over the walls. But I had no idea that happened to the graphics.