Subgroup

Any group of roles, defined by some attribute not related to Faction alignment, the most common of which is gun carriers. Usually a subgroup is defined because an investigative role can discern who belongs to such a group, such as the gunsmith. The obvious drawback of such investigations is that they still don't tell you who the Mafia members and Serial Killers are. Cops own guns, as do vigilantes. On the other hand some Serial Killers don't own guns. One way in which these results may be put to good use though is to catch Scum in a lie. If someone roleclaims a role that does not involve a gun but the gunsmith has discovered that he has one, there's a strong possibility that he's Scum. (See Texas Justice Mafia)

Subgroups sometimes affect other abilities too, most commonly recruitment or night-killing.