* /r_shownormals 1
this shows players your urt can 'see', even when you cannot because they are behind a wall. /r_shownormals 0 turns of, best is to use it with a keybind like:
- /bind <key> "toggle r_shownormals"
it will only work if the bind is a key on the mouse, pressing keys on the keyboard besides the console key will stop demo replay.
The above was stolen from : http://www.dswp.de/old/lamas-corner/cheat-detecting-t892.html
Than watch him "predict" when and where blues will show up or exit spawn. At one point he is following a blue at spawn that is behind the walls. Also inside the garage 2 blues are hiding one level under him and he tries to shoot them through the floor.
WH is hard to catch but some random shots at walls/floors are a nice indicator.