Okay so here are the rules, taken from a pm to Taelin, who inquired about them.
Okay, so there are the National Guard, and the rebels. The two national guardsmen decide on who they want to kill together, and then tell me. Then, I tell everyone whose died. Joly can save the victim. You, Javert, can ask me something like "Who is Taelin?"(Used you as an example XD) and I'd say "[Enter role here]". Gavroche asks "Is Taelin a national guardsman or rebel?" Now, Javert, a spy, will always come back as a rebel. Everyone else is right. And Enjolras can kill anyone he wants anytime in the game, but can only do this once.