Vigilante

The Vigilante fighter is made to take a hit. They are the center of attention in a battle, they get in quick, strike hard, and focus their damage on either one opponent or quickly striking a group of them. Either way they will dish out the damage and make sure those they're fighting focus on them and not the rest of the party. 

*It won't allow a lv 1 Feature so included here.
Urban Awareness: You have advantage on Perception and Investigation checks when in an urban environment. Also, you cannot get lost when you’re in a city.

Punish the Guilty

Once you reach level 3, you have developed a keen sense for avoiding danger. This helps you to get out of tricky situations. If you are not incapacitated, paralyzed or blinded, you have advantage on Dexterity saving throws to avoid harmful effects (traps, spells, breath weapon,...).
Additionally 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 Escape

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 10th 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.

No Mercy

At level 18, you’ve become ruthless to your enemies, taking away any chance they think they may have of escaping you. When you use your reactions to perform an attack of opportunity, you can use all of your attacks instead of the regular one.