Oddball Infobox-1-.png
Terminal.png This article, Orbital Assault Operations, was written by Ajax 013. Please do not edit this fiction without the writer's permission.
USR Special Warfare Group, Orbital Assault Operations
Unit Background
  • Orbital Drop
  • Assault and capture
  • Shock troopers
Unit Motto

"From the heavens"

Current Commander

Field Master N'tho 'Sraom

Current Status



The Orbital Assault Operations is one of the largest branches of the USR Special Warfare Group, with a contingent being placed on each Warship capable of supporting their operations. The OAO, also referred to as Invaders, are sent in as one of the first contact forces from a Warship, with their task being to secure planet side positions, such as anti-aircraft positions, strong points and landing zones. They are also used to quickly reinforce positions, or provide direct attack just behind the frontlines, to help in break through actions. This is typically done in a highly coordinated drop assault consisting of a lance to a sub-section of Sangheili lead by a cadre of officers. Reinforcements may include the larger Heavy Orbital Insertion Pod, carrying specialists with heavy weapons to secure the combat zone.

The Invaders are often equipped with the Assault Harness, allowing them to survive the trans-orbital more easily, while allowing them to survive better in the harsh combat zones they are likely to experience. For firearms, more often than not they are equipped with short range firearms, such as plasma rifles, plasma repeaters, Needlers, Concussion Rifles, Carbines and grenades. Heavy weapon files following up behind may bring with them plasma cannons, Fuel Rod Guns and Plasma Launchers.

Special Operations Divisions in the Necros War
UNSC Marines, First Echelon: STO | Night Runners | SPARTAN-IVs

Marines, Second Echelon: ODSTs

Marines, Third Echelon: Commandos | Rangers | SFWSG | Stalkers | EVAT | Hellbringers

Marines, Fourth Echelon: PSYOPS | Guardian | Spear Head

Navy: ANWG | SOW | Flight Testing Group | NavWar DevGru

Joint: Joint Evaluation and Tactics Group

USR Operation Divisions: Commandos | Spec Ops | Assassins | Pathfinders | Rangers | Assault Troopers | Avengers | Fleet Security

Military Orders: Light of Helios | Guardians of Faith | Honour Guard | Ascetics

Machina GEARS Project
Vorenus SPECTRES | STARS | FEAR | START | Vanguards
Plainsfierians Sentinel Unit
Jiralhanae Alliance Brute Ravager | Brute Stormtrooper
Kig-Yar Regime Kig-Yar Scout | Kig-Yar Shocktrooper | Kig-Yar Stormtrooper | Kig-Yar Butcher | Kig-Yar Bodyguard | Kig-Yar Bombardier | Kig-Yar Assassin | Black Claw
Yanme'e Hives Yanme'e Slayer | Yanme'e Berserker

Community content is available under CC-BY-SA unless otherwise noted.