Vigilantes

Vigilantes are subset of parahumans that, despite any "heroic" intentions, can rapidly end up labeled as villains; they exist in the gray legal space between the classifications but unlike rogues they are very much combatants.

They tend to eschew Unwritten Rules with all of the consequences that implies. Interestingly vigilantes are known to go after Parahuman Response Team Kill Orders, which means they can and will attack each other.Keep in mind that the PRT is in large part a PR organization. They want to recruit wherever possible, and the more kill orders you sign off on, the less people are going to be willing to play ball with you. As a general rule, the only villains who justify a kill order are those where, if you were to poll the local villain community, Arson Jones is going to say, "Yeahhhhh, you need to put that motherfucker down." Just as a rule of thumb. In a healthy, functioning city (Brockton Bay is not this) it's not something that's going to come up with any frequency. What is it? A Kill Order is basically kicked off by the PRT reaching out to other authorities (police, government) and outlining the situation, often through meetings, and often with other Directors from nearby cities getting involved. Given what the Kill Order is, in most cases the police & government already know what's up, and oftentimes there will be discussions that sort of table the kill order until there's one more strike, so to speak. Once it's made, it's open season. Civilians (and capes) can put money into a reward pool, and it's essentially open season on the target, and anyone who's got permission and knows the general rules (no collateral damage) is allowed to go after them. Example: Lullaby has been going around and murdering little kids in Bismarck, North Dakota, displaying the bodies in prominent locations. Bismarck doesn't have a PRT office (well, it does, but it's literally a one-room office), so the heroes arrive from St. Paul-Minneapolis, and protectorate members from other cities are called in for backup. There's little need for the PRT to reach out to police and local politicians/senators, because the phone is basically ringing off the hook. A meeting is called in, directors from the various offices around St.Paul-Minneapolis are brought in, as are local politicians, police, and judges. They basically hold an abbreviated trial complete with sentencing. If there's any doubt at all, then it can't go forward. The kill order is signed (Lullaby is shown on security cameras killing the kids with her signature power, then hanging them up over an alleyway) and the notice goes out. Media is contacted, and local capes make a point of spreading the word in any communities. What generally happens is that the crazies come out of the woodwork. Intense vigilantes, mercenaries, and villains who want an excuse to get some legitimized violence going on. The heroes switch jobs (and may switch out) to a more management style. Keeping the kooks in line, keeping the vigilantes and the like from killing each other, and providing/gathering information. Lullaby gets offed by Brazen Bull, a murderer himself, manager of a roaming villain biker gang, and Brazen Bull strides into the PRT office. He collects his reward (about 90% of the $130,000 pot - the other 10% goes to the person who provided the info that helped Brazen Bull find Lullaby) and walks out without being arrested. - Comment by Wildbow on Reddit.

PRT Response
Some PRT directors were known to attempt to recruit, rehabilitate, and fold vigilantes into the structure. Especially, early after the trigger event or when said parahuman is a minor.

However, there is no special qualms in treating stubborn, problematic vigilantes as just another type of villain, and fast-forwarding them to The Birdcage, or even issuing a Kill Order.

Notable Examples
Inversions
 * Chevalier started as vigilante with a personal grudge, and had to choose between revenge and future.
 * Shadow Stalker
 * Gavel
 * Lighter
 * Drillbit
 * Eclipse Arc – Robin Hood-type Villains

Trivia

 * All things being equal Vigilantes will usually have more intimidating names.