I personally followed

and it worked, at least for now.
The most important things to do are:
- Have a residential IP. (other than your own IP)
- A steam account with hours / levels on it. (g2g are the best for cheap)
- Delete all files that concern DayZ. (It is better to completely reset your PC to 0)
- Do not connect to your steam account that was banned on the server in question. (Otherwise, your new account will be linked on CFtools to your old steam account)
- Do not be on the servers' discords. (Also remove Discord activity, change your name etc, it is better to have a second discord account for cheats and the other for DayZ servers)
- Do not put the same name as before / discord > games. (The staffs are often with a second account on the cheats discords)
- Change your IP location. (vpn / proxy's)
And there you are, in their eyes, a new player starting on the server until your next ban.