TEXT:  
  Ranger Archetypes 
  The ideal of the ranger can have many expressions. 
  Vigilante 
  Walking the line of the vigilante means taking the law into 
  your own hands, and following your own code. Inevitably, 
  you will become a lawbreaker in your own right, despised 
  by lawmen and feared by criminals, but such a sacrifice is 
  necessary for the greater good. Vigilantes strike first, and 
  strike mightily against their foes, standing against the tide 
  of any villain that stands in their way. 
  Punish the Guilty 
  Starting when you choose this archetype at 3rd level, when 
  you attack a creature with all its hit points, you can make 
  one additional attack against it. If you deal damage to this 
  creature, it has disadvantage on attack rolls it makes during 
  its next turn. 
  Swift Attack 
  Starting at 7th level, you can add your proficiency bonus to 
  initiative rolls. Additionally, you can take the Dash action 
  as a bonus action on your turn. 
  Strike First 
  By 11th level, you are expert in quickly ending fights. Once 
  on each of your turns when you enter a hostile creature's 
  reach, you can make an attack against it. 
  Mettle 
  At 15th level, your determination allows you to shrug off 
  effects that would otherwise harm you. When you are 
  subjected to an effect that allows you to make a 
  Constitution saving throw to take only half damage, you 
  instead take no damage if you succeed on the saving throw, 
  and only half damage if you fail. 
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/5th Edition (5e)/3rd Party/Mage Hand Press/Vigilante.pdf