If you want a tool that is undetectable you have 2 paths,
1. Buy a private tool is 90% chanse of not being detectable ..
2. Understand a little assembly / C # and make your own tool and of course not publishing it .. for your own use, basically with minimal knowledge you make a basic ESP even because a batteye bypass is quite easy (even more so when you know how to manipulate minimally sdk)
Public tools to games that have Batteye is impossible to be undetectable, just hours after being published have become easy target of BE signatures even if the cheat has a bypass kernel level ... basically it works like a VAC .. so if you want something do it yourself or buy it!