Help against cheats, mod script, plugins

hello everyone. can someone recommend me some plugins, script oh mod. that detects cheating users.

something like aimbot detector. but I can’t find it and if I found it I wouldn’t know much about how to install it

I use cod4x, with mod nueva experienia and bot3 “bigbrother”. I think this is how is written

What I have noticed on my server is that some users have a god level aim. and that brings me doubts and the bad thing is that I uh other players can get bored and not play, I wanted to set up a free access server but not that they abused.

Thanks everyone for your help