Forces of UNSC

The United Nations Space Command Marine Corps is a branch of the UNSC Defense Force that is responsible for land-based military operations as well as the protection of Naval vessels and installations from attack.A rugged and diverse assortment of well equipped and well trained men and women, one of the Marine Corps's most notable conflicts was fighting a losing war against the Covenant's highly superior technology and numbers.

The Hellbringers are a anti-infantry unit equipped with NA4 Flamethrowers, carrying a potent chemical mix in a tank that is spewed through a gun onto the target. A variety of mixtures have been created for work in various atmospheric and gravitational conditions, but they all work similarly to fry just about anything.

Hellbringers aren't particularly common in the UNSC's arsenal, as they are usually only called in to deal with the most firmly entrenched enemies, like the Flood, which means that they also take plenty of casualties themselves. Also they might be poor against vehicles, especially tanks, but they are good against basic infantry.

The Orbital Drop Shock Troopers (ODST) are an elite group of UNSC Marines that specialize in special warfare tactics. Their method of infiltration by orbital drop allows them to conduct missions against targets that other conventional forces cannot approach undetected.

The ODSTs are one of the primary Special Operations units of the United Nations Space Command, and is under the command of UNSC Naval Special Warfare Command.

Spartans are the super soldiers of humanity.Gifted humans who have been trained for many years,wearing super armors better than any human or even Covenant.