UNSC rank structure/Spartan

From Halopedia, the Halo wiki

All table information sourced from Halo: Official Spartan Field Manual pages 32-33, except where otherwise noted.
Role Spartan Fireteam Leader Mission Handler Spartan Commander Director of Spartan Operations
Responsibilities Augmented special forces equipped with MJOLNIR Powered Assault Armor. Field leader of a fireteam of 4-5 Spartans. Spartan Command liaison and intelligence support stationed at headquarters. Responsible for managing 5-10 fireteams, or 20-50 Spartans. Overall command-and-control of Spartan Company. Responsible for upwards of 300 Spartans. Commander-in-Chief of the Spartans (CINCSPAR)
UNSC authority First Lieutenant Captain Major Colonel General