The Master Chief has saved Humanity at the cost of Cortana, one of his few remaining friends. More than he will admit, John relied on her, cared for her. To no longer have her means to lose another part of his humanity. Still the universe keeps going and once again, he is called to serve and protect Mankind. Now he has a choice: does he brave Remnant alone or does he embrace help?

The Master Chief is found by the Atlantis Expedition, how did the Master Chief end up in the early 21st Century and in the Pegasus Galaxy?

It had been ten years since Noble Six joined the NYPD, following the fall of Reach, quickly moving through the ranks and making detective, but when he is transferred to the 99th precinct he finds his life flipped upside down when he had to work alongside the eccentric squad of the Nine-Nine. If his own past doesn't drive him insane...they certainly will!

The UNSC will have to navigate a galaxy poised to rip itself apart between the ambitions of the System Lords and the scheming of the San'Shyuum Hierarchs. Will humanity triumph and rise victorious from these trials, or will it fall by the hands of its enemies? Only time will tell.

Mankind's Greatest Hero has finished his mission once more. Saving Earth from the Didact and his weapon of mass-recruitment, the Composer, the Master Chief and his AI companion, Cortana, find themselves mysteriously transported to a strange variation of Earth, where machines rule the surface and mankind hides below. The SPARTAN and those that join will fight to Reclaim the world...

After a failed slip-space jump, Master Chief and Cortana crash-land in Morytha, a desolate realm in Xenoblade Chronicles 2. Their arrival doesn't go unnoticed, as the shockwaves of their entry send ripples across Alrest, leaving a profound impact on its inhabitants.

Ever heard of a giant Megacorp falling down from the sky? Neither did Night City. Until a suriving group of UNSC came down with a mishmash of a UNSC Carrier ship. That certainly gave Night City something to talk about for months. (Inspired by both the main Halo series and Red vs Blue)

Humanity and its allies have stood strong after the Great War with the Covenant. Follow the Systems Alliance as it goes through a first contact nearly as disastrous as the one that lead to the Great War.

En el año 2559/296 D.C., el UNSC inicia la colonización del recien descubierto sistema estelar "Omega Ascalon" en un intento por evacuar a supervivientes de los ataques de "Los Desterrados". Mientras tanto, en el continente occidental del planeta, sus habitantes pronto enfrentarán el cambio de reglas en el "Juego de Tronos", cuando un lobo solitario vuelve al servicio activo.

2537. The UNSC tries to find a new home for humanity to settle in, one away from the Covenant's reach. An old Punic-class supercarrier was chosen to do so, but a Covenant battle group pursues her relentlessly, until a black hole ends their chase. As both sides stumble in a new universe, the question remains: Will they bring their war to Azeroth? Or will they find a new beginning?

The Master Chief arrives on Fevrith finding himself plunged into the midst of a conflict bathed in fantasy. Elves, witches, wyverns, and wizards, every fairy tale element is present in this new alien world. With no escape or contact back home in sight, will the Chief find a way back? Or will his journey to liberate a kingdom be the ultimate key he needs to find his humanity?

Six's life was an unending war, a crucible of unrelenting tenacity and unyielding resolve in the face of impossible odds. Every battle he fought, bullet fired, enemiy eliminated, had been a prelude to this moment. Now, once more, he stood among the few who shielded Earth from her enemies. This was to be his final stand—a final battle where the outcome seemed inevitable. or was it?

The office of naval intelligence receives a strange encrypted distress signal from a research station from a colony on titan. UNSC infinity is tasked with investigating. when the deployment team sent to investigate reports back of a strange creature they have taken down a data chip found provides evidence. a map to an unknown star system and a name. Aparoid

The Human Order Incineration Incident, the crisis that Chaldea has to resolve in order to restore mankind. Heroes had been summoned in an effort to assist in their endeavor, both from the past, as well as one from the future.

The journey of a hero doesn't always start where they expect. It doesn't always happen to those who expect it. Damon was never interested in being what SPARTANs represent: an implacable force for good standing as humanity's shield. Like most other third-generation SPARTANs, the war took everything from him. All he wanted was to return the favor. Sometimes we don't get a choice.

Whilst exploring the depths of Gamma Halo, a lone Spartan inexplicably finds himself transported to an irradiated wasteland on a planet that shouldn't have one; Earth. Looking for a way to support himself, he teams up with a local courier investigating a series of mysterious disappearances from the city of New Vegas.

Hundreds of millions of years ago, Humanity, Forerunners and the SanShyuum, the tier-1 species protected the galaxy. But the peace never lasted as the threat of flood and the reapers brought the Milkyway to the edge of extinction. Now the warriors of the past needs to guide the future galaxy and stop history from repeating itself.

AU/FUSION FIC. Sidestory. A colony that was spared destruction at the hands of the Covenant has become the backdrop for something unbelievable. Now a motley assortment of colonists and outsiders may finally have an answer to the question of what exactly happened over Vodin in 2532.

After what was thought to be a simple mission, team RWBY wind up as stowaways aboard a phantom on the Seeker of Truth as it rendezvous with the Fleet of Particular Justice in order to await for the arrival of the Pillar of Autumn. Now caught in a war none of the girls would ever have imagined, they must fight alongside the Master Chief and the Marines against the Covenant.

Stuck in the Universal Century during the One Year War, Master Chief and his companions help the White Base Crew survive while also trying to find a way back to Zeta Halo. In the meantime, a group of battle-hardened Banished troops does what their organization does best. Take advantage of conflicts and various organizations for their own benefit. (Also includes Owl House)

Having been awoken by his faithful companion. The Master Chief and Cortana find themselves in an unknown galaxy. Knowing the only way to survive is to remain under the radar. But in a galaxy gripped by war, such a thing was never going to be easy. As the Chief try's to up hold the status quo in the ever changing world of Mandalore, as the galaxy slowly torn apart around them.

Never did he think that he would become a Spartan, rather than a hero. Didn't imagine that he would be traveling around the galaxy, fighting against aliens. But with the Covenant's intention to wipe out humanity, it was a path Izuku knew he needed to take. And with the many lives he ends up saving, it's one that he'll never regret.

In the wake of Reach's destruction at the hands of the Covenant a new Spartan team, Gold Team, is formed. During their transfer to Nassau Station a freak slipspace anomaly occurs, sending the team through space and time. Crash landing back on Earth, the team finds the human home world no longer under human control.

Super Earth is at war! In the Galactic West, the Automatons unleash their socialist horror upon the peoples of Super Earth. In the East, meanwhile, Terminids escaped from their cages bring forth destruction on our Colonies! Though, even amidst these trying times, hope remains! Newfound allies have entered the fight for Managed Democracy! Their name? The United Nations Space Command

On the way down to New Mombasa, Rookie falls into the Slipspace Rupture and ends up crashing down on Menae, high above Palaven, right in the midst of the Reaper War. From there, the war itself will shift and the fighting persists, but who knows what an ODST will add to the mix. (Redo of an older story)