I was bouncing around in earthrises forums and came across this. We may have to create two guilds one per each faction. Should be intresting.
(QOTW 0225200
Choosing factions
...Change of affiliation between Continoma and Noir may happen at any time. Such change won't happen automatically. Every action will count against the reputation towards each faction and players can be seen as zealots or untrustworthy Continomians or Noir supporters. Shift between Continoma and Noir will happen only when the player strictly chooses to. Still players have to prove their interest in the opposite cause before they are accepted among the rival faction. Frequent change of faction affiliation is another factor to count in - players will find it harder to gain trust of their new brethren if they have been turning their coat too many times too often.
Finally, turning to the other side in the conflict while the player is in a Party or a Guild will have it's severe repercussions - each Guild has its own affiliation to Continoma and Noir and in a game featuring territorial conquest, traitors among the lines will rarely be tolerated. Players will have to choose wisely.
Other intresting links from the Devs
http://forums.play-earthrise.com/index.php?topic=1383.0
Froggy