First Sergeant

A First Sergeant (1Sgt) is the highest senior enlisted rank held within the Orion Nero Initiative, and is equivalent to a Command Master Chief Officer in the Special Air Recon Command. A First Sergeant is one rank above a Master Sergeant, and its insignia is represented by a gold arrow, two chevrons and a rocker pointing upward.

Star Corps
In the Star Corps, a First Sergeant is mainly a company or platoon adviser, but in the Special Operations Command, a First Sergeant can lead a team of E-4 to E-8.

Sky Legion
In the Sky Legion, the First Sergeant is usually the maintenance crew chief for an entire squadron of aircraft.