Like A Dragon: Ishin features four styles of combat: Brawler, Swordsman, Gunman, and Wild Dancer. The Brawler style focuses on unarmed hand-to-hand combat, while Gunman and Swordsman focus on the single weapon featured in their name. Lastly, Wild Dancer combines the use of a sword and a gun, creating a hybrid style of fighting. As for which of these fighting styles you should use, the combat in Like A Dragon: Ishin allows you enough flexibility that it primarily comes down to personal preference, although you will want to try and balance out your usage of each class. The reason for that is that XP and skill points are earned mostly on an individual basis for each class.