UNSC rank structure/Spartan

From Halopedia, the Halo wiki

All table information sourced from Halo: Official Spartan Field Manual pages 32-33 and Halo Encyclopedia (2022 edition) page 65, 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