This will support 1.08 only. All other versions of Halo are obsolete.

Bans will be handled just like they are now - CD key hash. No matter how many names you use, your specific copy of Halo will be banned from all supported servers for the duration of your ban which could range anywhere from two weeks to permanent, depending on the offense.

Illegally obtained CD keys will be banned as well. There is absolutely no reason whatsoever a pirated copy should be permitted to play, especially being that the stats would be collected from several players.