Suggestion #4027

Adding a Gang plugin

As titled, having a gang plugin allows us to have team members in our party so we could have a gang chat. To prevent any abuse, you can only allow up to 6 members in each gang to prevent everyone from joining 1 gang so we could have a diverse and plentiful gangs around the Prison server. Also, it also reminds us that there are so called 'Gangs' in real life prison so this could be a cool addition to make people feel that this is a real prison server.