In order to become a Pirate you should kill people from your Faction.
- Or you could tell a friend of yours to come and kill him many times.
You should do this in order to obtain Criminal Points and make your Faction prosecuted you.
Becoming a pirate will kick you from any guild you are currently in. Must have 3000 Infamy Points.
Pirates also have their own Pirate Ship.
And their own home Island, Growlgate Island.
Which is protected from other players (The non pirates).
The location on the map: