Ban-from certain maps/scenarios

I ban certain players grom my maps/scenarios cause they are traitors or gangbangers, but there is nooption to ban them on certain games, i am ok that those play some maps, where they cant do it, cause certain reasons,.

You can submit the names of those players to the map creators. They will add it to their banlist and those trolls won't be able to join anymore, unless, of course they would create a new account. But then they'd just get their IP address banned.

IMO traitors (backstabbers) and gangbangers are not to be banned from maps/scenarios. This is part of the game; although quite sic!
Just ban them from games you host, so you don't have to play with them.