Office of Naval Intelligence – Halo’s CIA

This morning as I was drinking my piping hot cup of “Canadian As F*ck, eh?” courtesy of Black Rifle Coffee Company, I stumbled across a video by the Youtuber, HiddenXperia, on his coverage of ONI’s betrayal of the Master Chief. As an avid fan of the entire Halo series, like bought Xbox over Playstation specifically for Halo, this is something that I had never heard of. I always knew that ONI were a shady bunch of people, but this ranks up there with Umbrella Corporation and their experiments on workers without their consent. This week is going to be devoted to some of the more “shady shit” ONI has done within the Halo universe and how they’re basically the CIA with a whole universe to play with.


The Office of Naval Intelligence (ONI) is broken down in various sections which each handle different matters.

Section Zero – Internal Affairs and Investigations (private police force within the UNSC)
Section One – Military Intelligence
Section Two – Propaganda and Information (Spin doctors to keep/distort public perception)
Section Three – Special Projects (SPARTAN Programs, Blacklist Prisons, Experimentations)

This article will primarily be focused on ONI Section Three and some of its nefarious dealings.


It’s no secret that the Spartan II project, is the first foray of ONI’s begin into shady practices (technically it was first Project ORION but we’ll stick with the SPARTAN II). I’ll give a brief rundown of their involvement in the Spartan II initiative.

Master Chief after he crash lands on Alpha Halo

As Dr. Halsey built on the Carver Findings and proposed her own potential outcome to the scenario, she petitioned ONI section three to allow her funding and free reign to create the next wave of super soldiers. ONI had conducted it’s own analysis of the Carver Findings (hypotheses presented by Dr. Elias Carver on the breakout of Insurrection) and come to roughly the same conclusion that Dr. Halsey had. They therefore agreed to fund her program and to maintain the secrecy, they utilized all four branches of ONI to mask the project. As the project began it’s earliest stages, Dr. Halsey declared that child recruits are easiest to indoctrinate and to undergo the radical surgeries required. ONI attached Lieutenant Keyes to Dr. Halsey as she moved around human controlled space selecting recruits. When the project finally began, ONI operatives abducted each of the children and replaced them with a rapid grown flash clone. All of these clones would die within the year making the recruits to the program effectively ghosts.

Not only did ONI directly create the Spartan IIs, but they also “acquired” several of them for specific purposes. One of these purposes was the formation of Black Team. This was a small squad of Spartan IIs outfitted with modified armour that carried out black ops missions directly for ONI high command. They carried out assassination missions and asset acquirement missions for ONI against humans/covenant/flood/ and prometheans. On their final mission to obtain a Forerunner artifact, all contact with Black Team was lost. Black Team was found by Blue team and noted as “Missing in Action” on Installation 03. All Spartans are noted as “Missing in Action” instead of “Killed in Action” to keep up the appearance that Spartans never die (this was a practice implemented by ONI).

Spartan Black Team

In addition to Black Team, ONI also acquired 3 other Spartan IIs which they formed into Gray Team. Gray Team was meant for one purpose, to infiltrate far behind enemy lines and cause whatever havoc they could without support from any friendly units. This led to extensively long missions in small quarters which is why the team was limited to the three “most independent and individualistic” of the Spartan II recruits.

ONI also “acquired” Spartan 051 Kurt when he was recovered from deep space following a malfunction by his EVA pack. He was officially listed as MIA but was recovered by Colonel Ackerson of ONI. He was given the surname of Ambrose promoted to the rank of Lieutenant Commander and was tasked with training the Spartan III recruits on the planet Onyx. Kurt sacrificed himself to hold back the covenant invasion force and allow Blue Team and Team Katana to escape into the Forerunner Shield World at the core of Onyx. He detonated 2 Fenris nuclear Warheads which vaporized the covenant invading force and the rest of the planet that was not guarded by the shield world.


Kilo Five is one of the more secretive things that ONI has done. Kilo Five is a secret Blacks Ops team that is run by a former Spartan II and serves a guerilla hit and run squad. It’s field commander is a Spartan II and the rest of the squad is made up of 3 ODST Troops, Professor Evan Phillips and a Smart AI known as Black Box. The main purpose of Kilo Five was the start an insurrection amongst the various Sangheili (Elite) factions following the Schism (when the Elites and various other Covenant allied with Humanity against the brutes and their forces). Kilo Five answered directly to Margaret Parangosky, the Commander in Chief of ONI. They operated with complete impunity using whatever means necessary to accomplish their missions.

Kilo Five

Now that we’ve covered most of the stuff the people know about ONI let’s talk about the things they don’t know…


In Halo: Nightfall, Jameson Locke and his ONI Remote Tactical Strike Team stopped a Sangheili bio weapon attack on the colony of Sedra, with minimal casualties. As they completed this mission, they noticed a rare element which was the base of the bio weapon. The element was completely unique to a single shard of the Alpha Halo which was destroyed by the Master Chief at the end of Halo: Combat Evolved. Locke and the remaining uninfected members of his team, partnered with Sedran Colonial command and their leader Colonel Randall Aiken to venture to the shard and obtain a sample of the element to manufacture a cure. The expedition was attacked by a large colony of Lekgolo worms (drone organisms that make up the Hunters in the Halo game series) which are attracted to electrical signals. As the expedition forces dwindle, Locke and private Macer managed to make it to a small 2 seater craft called a “tug” and managed to escape the shard. The rest of the team were killed either by infighting or by the worm colony with colonel Aiken sacrificing himself using a HAVOK nuclear warhead to destroy the Alpha Shard and the Lekgolo colony. When Locke and Macer return to Sedra and manufactured the cure, ONI whisked them away “for immediate debriefing”. Nothing is known about what happened to Macer, however following the mission,Locke left ONI and enlisted in the now declassified Spartan program.

Nightfall release poster

Nightfall wasn’t that bad of a covert mission, except that ONI completely covered up the bio weapon attack, citing Boren’s syndrome as the cause of the sicknesses, disavowed those who died on the shard and whisked Macer away to Black Site facility to never be heard from again.


Benjamin Giraud was a civilian contractor working with ONI and their section two office. He was a field reporter that worked with the UNSC to provide front line news about the war effort to the folks back home. After he witnessed the Master Chief “Save Humanity” during the battle of Mombassa in 2552 (Halo 2 campaign), he decided to discover the truth behind the Chief so that people would be able to know their hero. He worked tirelessly to arrange interviews with various individuals to get the story on the Chief in the year of 2558. As he went through the list of contacts provided by ONI and the ones he found himself, he discovered that all of the ONI contacts were plants meant to muddle up the information and hide the truth. As he discovered the cover up, ONI threatened that they would ruin him if he pursued this story. Deciding that the people needed to know the truth about their saviour, he went against ONI and continued the investigation on his own. He discovered that the Master Chief and the other Spartans were nothing more than children who had been abducted by ONI retrieval teams and indoctrinated by the UNSC. Appalled at what he discovered, he decided to expose the cover up and show the people of Earth Space what ONI had done. He arranged an interview on a talkshow on the ECB News channel hosted by Charles Kesler where he would reveal the entire story to humanity so that ONI would lose it’s support. Unknown to Giraud, ONI (through their Section two office) controlled the news channel. Prior to Giraud’s interview, ONI arranged for witnesses to be aired refuting every single point and fact of proof that Giraud had. When he came on the air and delivered his evidence, he was seen as a crack pot conspiracy theorist and completely discredited. Following the interview, he was apprehended by an ONI security team from section zero, and taken to their Midnight facility (a top secret high security black site prison hidden in the Asteroid belt). Giraud was sentenced to solitary confinement in Cube B-349 (cell B-349) where his mind slowly began to unravel due to the isolation and not having any human contact for weeks on end. He would punch the walls of his cell until his hands were bloody, rub his head along the wall until it bled and smear it around the walls. The last mention of Giraud states that he is still in his cell at the Midnight facility and the use of knockout gas is frequently required to stop his self harm.


This is the crème of the low for ONI. They condoned experiments with the Flood on human prisoners and covenant prisoners of war. ONI backed a crazy scientist, Major John Smith, who deliberately infected several human prisoners and infected Elite prisoners. He was infecting the prisoners to attempt to find a cure for the disease and to try and weaponize the Flood virus for use in a theater of war. The containment was broken and the entire ship, The Mona Lisa, became infected with the exception of Smith and the elite, that had been nicknamed by the Marine retrieval team, Henry. As the team enacts the “Cole Protocol” (scrub all Navigational data and if possible either make a blind slipspace jump away from Earth or scuttle the ship) they are notified they have 20 minutes before a nearby UNSC ship, the Foulcault, will deliberately destroy the ship to prevent the spread of the infection. Smith hijacks the pelican the retrieval team arrived on and leaves the ship to save himself. Seargent Lopez, her remaining crew and Henry destroy the NAV data and damage the engines to stop the ship from going anywhere. As they attempt to evac they are attacked by the flood infected prisoners. the rest of the team fall to the infection with the exception of Lopez, Henry and MacGraw. MacGraw takes one of the two escape pods and flees the ship leaving Lopez and Henry to fight over the last one as their time runs out and the UNSC Foulcault scuttles the ship. It is later revealed that the Foulcault was operating under direct orders from ONI high command to scuttle the ship and leave no trace of their experiments.

Lopez v. Henry

These are just a few examples of the “shady shit” that ONI pulled throughout it’s tenure. They are also responsible for the creation of the MJOLNIR power armour and several advanced weapons utilized by the UNSC. Mostly though, it’s obvious that for every thing they admit to doing or being involved with, there is probably another 100 that they swept under the rug and eliminated all trace of.

That’s it for this week’s post! it’s pretty short compared to some of the other ones I’ve posted but there isn’t much info on ONI and their nefarious dealings… I wonder why… See you next week!