So each group knows who in their group but not in the other. and a rebel group can only win if it kills all the other rebels. Then what is the purpose of the citizens and how do they win?
No the rebels need to kill the President. Game ends when the President is dead or there are no rebels left.
Because the rebels only know who is in their respective groups and any investigations will only show other rebels as innocent, they risk helping the citizens rid themselves of rebels.
Rebel groups do not have the pleasure of knowing who is innocent. Only names they know not to hit are the ones in their group.
I'm just home for a quick lunch,I'll post the names of who is in so far when I get off work.