On the night Harry would have been dropped off by his Aunt, Dumbledore had someone else in mind. What if Harry was taken in by other strong people and they even decided to train him? Trained to be a Warrior by Wolves and the UNSC, he will change the world. OP, smart, trained Harry, small harem double cross with witcher and halo

As the truth is revealed, a war shatters the covenant and its allies even more. Rated T for violence, death and profanity.

For thirty years, humanity led by the UNSC has fought a war against the Covenant. The Covenant glassed hundreds of colonies and killed billions. Humanity is losing the war. At the same time, a galaxy away, the Federated Empire rises from the ashes of the Clone Wars and the Black Rebellion, slowly rebuilding. It is at this time, that the last of the Precursors decided to intervene.

After the Battle at the Ark, John-117 and Cortana are found and rescued by the long-lost UNSC "Spirit of Fire"... [Disclaimers within] [Cross-posted on SB] [Image not mine]

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.

While many know of the story of Lasky, the Master Chief and his compatriots, few people know of the stories that happened during these major events. These are the stories of the men and women that also experienced the Odyssey of the Infinity.

After a slipspace incident during a fierce battle, Sierra 117 and some of his allies find themselves in the DC CW universe. However, they are not alone, Atriox and the banished have followed them. Can the UNSC's greatest hero save a new universe from destruction?

For us the storm has passed, it's time to honor those who never return in this dreadful voyage. As human carved their loved ones' names to a stone pillar of remembrance, they carved ours' into their hearts as an utmost symbol of gratitude, and in them we would never be forgotten amidst time for it is the greatest way they honor us. UNSC Enterprise, requesting immediate recovery.

In the world of the multiverse many characters from different worlds could be summoned changing the course of the events. Todays look into such possibility is a servant who was a friend, ally, an equal to the legendary Master Chief.

After a slipspace accident sends a UNSC Frigate and a Banished warship through a rift in space time, Master Chief, Arbiter and others find themselves In a brand new universe. Unfortunately, There are more threats on the horizon, Old and New. As well as some new allies. The Multiverse will never be the same again.

The beginning marks the end, how truer have those words ever been until now. We stopped Truth and are firing Halo to exterminate the Flood, while also hightailing it as fast as we can back to the Portal to return home with all hands accounted. As Chief said "We'll head to the Portal and we'll all go home" Sadly nothing ever goes as planned.

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 "Juegos de Tronos", cuando un lobo solitario vuelve al servicio activo.

Slenderman was trapped in SCP-3008 for months. He was beaten by John-117. Now he's out for blood... Spartan blood.

It's the Fall of Reach, the Covenant have won. Spartan B312, the last Spartan remaining on Reach, has fought tooth and nail to break the backs of the Fleet still present on Reach. However, we both know how it ends. The question is: What happens when the Traveller sees fit to bring back Reach's Hyper Lethal Vector?

Between the Insurrectionists and the Covenant, he thought he had done and seen it all. But after being transported to an alternate universe and settling down in Smallville, Spartan-B312 realizes that his toughest challenge is about to begin...High School. He'll soon learn that there is more to this quiet little town than he initially thought.

El gran Reich renacido de las cenizas después de la guerra Humano-Covenant, unificará a la humanidad a través del multiverso con la intención de unificar a toda la humanidad a través del multiverso, a cualquier costo que sea necesario

They have a lot more to do before its done. Rated T for violence, death, and profanity.

While fleeing from the Inner Sphere following the Amaris Coup, the Exodus Fleet discovers an object out in the inky blackness of space. Little does General Kerensky or his sons know is that they will soon be within the center of a conflict that will decide the fate of Humanity and place the Star League-in-Exile at the forefront of the conflict.

Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew. Crossposted by myself, Jabber the very wocky on Ao3.

A powerful ancient entity escapes imprisonment threatening to destroy everything Harry Potter holds dear, with the help of his friends and the Masterchief aims to stop her yet, would he be able to stop the ancient entity before all is lost and corrupted beyond recognition?

In forgotten ages past, two near eldritch forces vied for the very life essence of the Galaxy. Unknown to the young races, that war is still ongoing. how can the UNSC, the Citadel Council or the Covenant hope to stand against such forces, when they are still embroiled in their own petty squabbling? How could they hope to survive the War of the Old Ones?

As the Human-Covenant War rages on in the year 2552, the UNSC gathers the best of its SPARTANs on Reach in a final bid to buy themselves time against the tide of the Alien Hegemony.. In the meanwhile, a Patrol Ship orbiting the outer areas of the Epsilon Eridani system finds an unknown vessel as it floats aimlessly. Aboard it may be the key to saving humanity, second to Chief.

Reach has Fallen and the newly promoted Captain Jacob Keyes has taken his small fleet and st course for Earth. However, this is not the Earth those in the UNSC remember. This is my version of a similar story by originally by Samsara Sage which was adopted by Ultimate Deathsaurer 2

Year 2560, the UNSC Infinity and what is left of her crew is fighting for its life against countless Banished Invaders. Deep inside the ship, two pilots and friends have to fight their way through it all to their Longsword Interceptor. A one-in-a-million chance incident with a Forerunner Artefact brings them to a different fight with a different enemy, just trying to get back home.

One day, visitors from the stars came to our world...