He was supposed to die on Reach, entombed with his fellow Spartans. A sendoff with a loud bang to end his very long career. He had done enough as an O.N.I lapdog, enough for humanity. He had sacrificed everything, given everything to a cause, and he'd make sure he would make an even bigger impact. Callan will find his way in this uncertain way, alone or not.

The Covenant has almost no males, and once they find a species whose population is half male, they begin a crusade for them. The UNSC will try to stop the horny horde, and save as many human pelvises as they can. And John 117 must personally make sure that those tiddied aliens fall. Smutty crackfic. And yeah, this comes from a prompt on /aco/ in 4chan.

I am reborn as a Man named William White, and after joining up with the UNSC, I find myself bundled off to Blood Gulch as part of Blue Team at the start of the Blood Gulch Chronicles. I find it slightly difficult to fit in with Blue Team, as I'm technically a Gay Man, but everyone else here is Het. Oh well, at least I can try to save Church. Crossposting for exposure.

The Covenant had been on Talian for a good few months. They were doing what they could to survive, but everyone knew they didn't stand much of a chance. That is until an injured Spartan falls (literally) into the hands of a teenage girl who's somewhat versed in medicine and combat. Finally, the sun starts to rise over the fields of Blood and Ash.

Atriox and his Banished have gathered anyone regardless of what species they are in their ranks. Whether they're criminals or mercenaries, they pose a serious threat to the UNSC. ONI's has provided us with...lesser known individuals that are within the Banished.

The war between the UNSC and the Covenant has finally reached Earth. The Master Chief has just jumped from the strange, forerunner vessel and crashed in the forests outside the city of new mombasa. Sergeant Major Avery Johnson and his team are dispatched to retrieve him, and along the way they find the Guardian of Lightning, but this isn't the same one they know.

Losing her parents at a young age, someone she once loved, a father figure, and even worse, her own brother. Can Master Chief help her open up to him and help her take down the one man funding the Space Pirates and giving weapons to the Covenant? Or is mankind doomed? Master Chief x OC (Is being considered to be rewritten)

[SECOND INSTALLMENT] The fight against cruel injustice continues. Now that Ludo and the others have acquired a Scarab walker, there is no force capable of standing between them and Halo's control room. Tartarus of course catches wind of this and sends a small army to stop them, but will it be enough to halt their advance?

When the Master Chief and the Arbiter rescue Johnson and his Marines from the POW cell, a captured civilian human is freed alongside them and taken to Crow's Nest. Unfortunately, the Covenant have decided to show up there as well.

[SEVENTH INSTALLMENT] Mar and the rest of the UNSC/Separatist striketeam move throughout the canyon valley neutralizing Truth's forces and clearing a landing zone for the frigate Forward Unto Dawn.

[SIXTH INSTALLMENT] Trained by the Plague. Lost his twin brother to the mad brute, Tartarus. Mar 'Garais returns in this epic tale as the lead protagonist. While his mission is to escort the Arbiter and the Demon to their various objectives, he has yet to both fully accept Madiba's death and embrace Ludo's teachings of stoic indifference in battle.

Or 'How I became the bane of Humanity's enemies'. It just happened. I was there. It was ugly as hell, but now I'm helping as much as I can. Of course, things had to start in Harvest... but I'm not alone. (Halo Marine!Insert) (Some characters have been Genderbent, just a few)

[FIFTH INSTALLMENT] Some time after the fall of Tartarus, the Covenant Separatists are informed by the Oracle of the Demon's AI being held captive by the Gravemind. When the Flood escape to Earth, Shipmaster Rtas 'Vadum, the Arbiter, Ludo 'The Plague' Macdem and his apprentice all arrive with reinforcements to assist humanity and locate Cortana.

The UNSC Infinity: The most powerful ship in the galaxy. While hiding from Cortana and M'dama's remaining forces, damage results in a malfunction in the Infinity's slipspace drive. Rather than wiping the ship from existence, however, the ship is instead sent back to Earth... Just not their Earth. Will the Infinity end the Human-Covenant War early, or cause a worse evil to emerge?

Pulled from her assignment to eliminate pockets of the Covenant remnant, Kelly-087 is given a new mission after she stumbles upon an atrocity: to hunt down and kill one of her own. A Spartan. On Kelly's mission to destroy her target, she will come face to face with not only the terrible will of her quarry, but of her own harbored doubts. Extreme prejudice authorized.

While the battle for the planet Daedalus rages in space, the Covenant searches for Forerunner artifacts on the surface. It is left to the Spartan-II Blue Team and their creator, Doctor Catherine Halsey, to make sure that the alien juggernaut doesn't get what it seeks. But when lines become blurred on both sides, it becomes a battle for survival for everyone.

One-shot snapshot glimpses into the lives of several characters in the Halo universe on a specific day.

The war is over, the Master Chief is no longer needed. John tries to assimilate into civilian life but old enemies still harbor anger and will do anything for revenge.

[FIRST INSTALLMENT] Ludo "The Plague" 'Macdemee and his commanding officer join the Arbiter on his mission to stop the mad Brute Chieftain, Tartarus. More and more surviving victims of Tartarus's cruelty join the team as it fights through tens of crazed enemy warriors to the one thing powerful enough to bypass the Halo control room's defenses: a Scarab walker.

They are Spartans. Spartans are invincible. Spartans don't "fall in love." Unfortunately for them, I'm not a Spartan. Just a dude who has shipped these two since I was an awkward tween, and now I'm finally trying to write something about it.

It has been 15 years since the Battle on the ark. Now awoken, John finds himself in a galaxy at war. Human and Alien factions fight for control in a power vacuum left by the destruction of the Covenant and UNSC. With is former loyalties gone, the galaxy at war, the Chief now needs to decide if he's human or machine. Harems and sex.

Halo: Feet First covers the story of a team of UNSC Orbital Drop Shock Troopers of the 7th Battalion, 105th Shock Troops Division. The main character, Duncan Iris, faces the full horror of the covenant war effort against humanity as well as the brave retaliation of outnumbered and outgunned UNSC forces. However, he also witnesses the turning of the tides as the war progresses.

ODST Private First Class Korbin Montgomery has had it with Zeta Halo. First, the UNSC loses to the Banished- effectively scattering the UNSC's forces all over the surface of the ring- then she lands on a dead Spartan-ll. What the hell else can possibly go wrong? Basically just a romance between Master Chief and an ODST OC.