Base Class: Fighter
You've always had a rough life and it's made you stronger. You're handy in a scrap or a gunfight. You always do right by your friends and family.
Fisticuffs
While you are not wearing any armor, your armor class equals 10 + your Dexterity modifier + your Constitution modifier. You are always counted as wielding a shield. You gain +1 to armor. in addition, you gain proficiency with firearms. You lose proficiency with all armors and martial weapons.
Same Dance, Different Partner
Your weapon attacks score a critical hit on a roll of 19 or 20. In addition, Your unarmed strikes are as a monks, as 1/2 your fighter level.
It Would Be Too Easy
At 10th level, You gain +2 bonus to attack rolls you make with ranged weapons and a +2 bonus to damage rolls with unarmed or improvised weapon attacks.
Archery
You gain a +2 bonus to attack rolls you make with ranged weapons.
Defense
While you are wearing armor, you gain a +1 bonus to AC.
Dueling
When you are wielding a melee weapon in one hand and no other weapons, you gain a +2 bonus to damage rolls with that weapon.
Great Weapon Fighting
When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2. The weapon must have the two-handed or versatile property for you to gain this benefit.
Protection
When a creature you can see attacks a target other than you that is within 5 feet of you, you can use your reaction to impose disadvantage on the attack roll. You must be wielding a shield.
Two-Weapon Fighting
When you engage in two-weapon fighting, you can add your ability modifier to the damage of the second attack.
Superior Critical
Starting at 15th level, your weapon attacks score a critical hit on a roll of 18–20.
Survivor
At 18th level, you attain the pinnacle of resilience in battle. At the start of each of your turns, you regain hit points equal to 5 + your Constitution modifier if you have no more than half of your hit points left. You don’t gain this benefit if you have 0 hit points.