Game is officially exploitable by the lowest common denominator until patched.....
1. Find a door you don't like and exit game
2. Move mesh.000 + all the texture files from inside the game directory to some other folder.
3. Relaunch game, hit f1, enter the IP.
4. Walk through door.
5. Exit game, put the files back, relaunch game.
This means that collision really is client side, and that nulling the collision call means that we can walk right through the fucking walls at any point. Garry "fixed" ghosting by testing along a movement over time for collision (client side >.<), which means just not having it test for collision is a work around.
I assume that this was to avoid having to add new packet sends to and from the server since they are being so frugal with them as they are.