Complex sentence: Some terms are used jokingly when referring to a soldier's rank, for instance Specialists are sometimes jokingly referred to as "Command Private Major", "Full-Bird Private", or "PV4".
Split into simpler sentences: Some terms are used jokingly when referring to a soldier's rank. For instance, Specialists are sometimes jokingly referred to as "Command Private Major", "Full-Bird Private", or "PV4".