Generic units are the backbone of your army. While they lack unique jobs, their flexibility in job progression allows for incredible customization. Start by mastering Squire and Chemist to unlock foundational abilities like 'Gained JP Up' and 'Auto Potion'.
From there, consider branching into Knight (for physical offense and breaks), Archer (for ranged damage), Monk (for powerful physical attacks and healing), and Black/White Mage (for offensive/defensive magic). Later, jobs like Samurai, Dragoon, Summoner, and Ninja offer specialized roles. Plan your job progression carefully to unlock desired abilities and stat bonuses.