going OT...
Storma, nothing on the server-side can expose an aimbot, as the aiming is totally client-sided.
If the aimbot is not well done, or the FOV is to broad, you might be able to detect it by specing.
Besides from that, you are out of luck.
With wallhacks it's the same, except you need one to prove that the acused is using one. And then again only if he aims through walls, which any player with half a mind wont do.
If you want a fair game, you either employ Evilbalance with PunkBuster'n shit where no one cares about the false-positives, together with the total rape of your own computer, or you play on server where the Admins know what they are doing.
Any which way you go, be happy that Trem is not RTCW:ET as this game get now raped beyond recognition, if you doubt, head on over to nixcoders and have a look at eth. Hardwareban? pffff! Server-ban? lol, 2 seconds and your back on the server...
As i stated in another post, I don't believe in a hack/bot for Trem as the weapons with insta-hit are not available from the start.
What's possible is exploiting, so be sure to always run the latest version...