The first one was over way too quickly, so let's do it again. This time, with a few changes - for n mafia, there will be n-1 police, to a minimum of one policeman. Furthermore, the police will not know, at the start, the identity of anyone, though they can still protect (which means at first it'll be a guess); and can night by night learn the identity of one person.
Otherwise it just seems a bit too easy.
Anyone up for more?
"He who lives by the sword dies by my arrow."
"In your histories, there are continual justifications for all manner of hellish actions. Claims of nobility and heritage and honor to cover up every bit of genocide, assassination, and massacre. At least the Horde is honest in their naked lust for power."