Removing factions

[Black_Draen]

This is probably a quite easy question, but I'm still a newbie when it comes to edit the text-files in Rome.

How can you remove a faction from the custom-games section? The faction don't have to disappear from the game; its enough that it can't be chosen in a custom battle.

Would be nice with some help

[Black_Draen]

Sorry for doubleposting, but are there really none here that can tell the answer of the question?

[Duke John]

All the factions that are present in the main campaign are also selectable in custom battles.