2 rebel factions

[Octavius]

Is it possible to have 2 rebel factions in the campaign ?

I know how to add a faction, but I would like, if it is possible, to have a second rebel-like faction, i.e. :
- this faction would have no family tree
- this faction could not die, even without any region nor character
- some "priests" could be spawned, like the slave heretics

In the descr_sm_factions.txt, there is an interesting line :

special_faction_type                slave_faction

But I don't exactly know how it works and what it would do if I put this line for a new faction.

In fact, my goal is to have 2 rebel factions, the slaves would spread heretism, and a jewish rebel-like faction who would spread judaism with its own priests and buildings. (I know how to add the new religion)

Any idea ?

[Gigantus]

It should theoretical work. As far as I know nobody has tried it before.

[Octavius]

I've juste tried to put this line to the english faction. The campaign loaded normally (I played france), but I got a CTD when clicking on the next-turn-button.

[Gigantus]

Guess it must be special like the papal faction. Ah well, can't be helped (read hardcoded) I guess.