In the first clip the camera angle bugs and u see him crouch bhopping down the stairs. If you really watch it close the camera goes to 3rd person multiple times and you don't have that arched back while regularly bhopping. The second clip he is just bhopping and gaining no speed, I've known vo/ man man for a while now and I personally don't believe this is enough evidence. @Nathanyour claim is just based off pure disliking for mechanics in the game. He's done this on multiple source games, and is one of the easiest things to learn. I know of staff that use the same techniques.