UNSC rank structure/Spartan
From Halopedia, the Halo wiki
Spartan ranks
| 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 |
