overall a very good idea! but you`ll need to teach the bot all the maps on you're server.
I got a better idea! Make a couple o boots (2-5) that are invisible, immune to HE dmg & placed frozen in some areas of every map by a admin through a menu, for example on the tunnel roof form D2 tunnel so it wont block players & on the skybox of A plant. The cheater will eventually get there sometime and shoot it => instant ban

the configuration of placement should be saved in a file for every map