While I applaud the work, and like the visualization techniques, this is an example of the weeknesses in PC FPSs, why they normally don’t live long. Of course with recent cracks it may be possible to move this onto consoles as well. http://vincentwoo.com/2011/01/24/gustav/
The kicker, I don’t know if there are any anti-cheat methods that could uncover this short of statistical methods. Of course that is just pushing back the problem. Just like Bayesian spam detectors, you can simply program to the expected result and make sure your not too good.
Ah well, all part of the meta-game I guess.