Yes. First person view isent as smooth as a Fraps or something recording but for almost all cases it should be absolutely close enough to judge use of aimbots/wallhacks etc.
This is the latest, work in progress, version of the RCam mod that helps with it http://www.speedyshare.com/xVzz8/RenX-R ... dAlone.zip (simply select a player with left mouse button, then press 'F' to go into first person view). To install in UDKGame.ini set DecalManagerClassPath to RenX_RCam_StandAlone.RCamDecalmanager. so: DecalManagerClassPath=RenX_RCam_StandAlone.RCamDecalmanager
This version of RCam also includes a wallhack that you can activate/deactivate with the 'W' key. It only works when viewing demos. If you want to judge if someone used a wallhack it is a lot easier to judge if you use a wallhack yourself when viewing that persons demo. It can also help to judge aimbots as you can see when people come arround corners and how quickyl the person in questions reacts to that. Previous RCam versions for UT04 had a wallhack aswell for that reason and it was put to heavy use by UT admins.
I was, and still am, waiting for someone to send me a cheater demo and then i wanted to make a video about how it can be verified from a demo with RCam. But so far i didnt get my hands on a demo from a real cheater. People asked me to take a look at demos from snipers like Cannucck and DieNoob. But from my and others (tmx admins) observations both of them appear to play clean in the analyzed demos. I was part of an Anti Cheat team in the game Tactical Ops and was involved in cheats investigation accross the UT games. So i think that if someone sends me a demo i am competent enough to judge it. However before i would put anyone on our own ban list i would always make a video about his cheatings first to prove it unless it's blatantly obvious.