Swashbuckler: Ranged DPS/Support - Long range weapon, musket, rifle, ect. Possible pet/grenades/anchor
Buccaneer: Melee DPS/Tank - Dual Wielding hand cannon and 1h melee weapon
Brigand: Ranged DPS/Tank - Mounts onto a cannon and can hop off to avoid damage. Cannon has HP bar when not mounted. Or can deploy cannon as a turret and use a secondary weapon to attack.