PK-117 is a Promethean Knight. Built by the Forerunners to fight the flood. His one goal was to die but kill as many Flood as he could. But during the middle of a battle, a bright flash of light sucked him away. During the teleportation process, he went into automatic stasis. His system needed to reboot for 1000 years. Lucky for him he will awaken on the day that the Crystal Empire returns. By the way, PK stands for Promethean Knight if it wasn't obvious enough

The Sangheili are a saurian species of fierce, proud, strong, agile, intelligent warriors and skilled combat tacticians. They are named after their home planet, Sanghelios, and are known to Humans as Elites, due to their adeptness and skill in combat. The Sangheili formed the military backbone of the Covenant for almost the entirety of its existence, they fear very little, and take great pride in an ancient, honor-laden code.

However, this group of Spec Ops Elites, Grunt, and Kig-Yar have crashed landed in Equestria by way of a slipspace drive being detonated in the middle of the ship they were heading to, the 'Glory Upon Salvation'.

Now they have to find a way off the planet and back into space so they can continue their journey to the Blessed Path... by dropping hot plasma on human worlds.
But will they want to, when something they revere tells them otherwise?

Recently tagged as Teen for implied violence, and (maybe) minor gore in future chapters.

It's the year 2559. The UNSC barely managed to fight off the hordes of the Covenant. That victory came at a hefty price. With the war over and the rebuilding process beginning, the UNSC Tuscany is sent out to investigate potential new worlds to colonize. It's crew and captain are in for a surprise when a gravitational anomaly turns into a tense situation where cooler heads must prevail.

Super-Edited Version Coming Soon

Proofread by: Alex Nuage and way2dawn

Now 100% Twilight's Library Approved
[img]http://i.imgur.com/6MrWqNZ.png[/img]

Awesome fan-art by Gothshy [Check it out]

The Arbiter. That is merely his title, nothing more. He has no name, no family, and no future... until now.

This Arbiter, he who was born of hate and wrath, thought no creature, let alone a mere human, could ever best him in combat. But, he was wrong. In the events of the Halo wars campaign, the Arbiter fought sergeant Forge multiple times, each time suffering a heavier, more degrading defeat. And at last, just when he thought he had the pestilent human, the gods suddenly turned their wrath upon him for his failures, and he failed against the little human, and perished on the shield world containing the forerunner fleet... or so he thought.

The gods he followed may have forsaken him on that day, but another, more fun power gave him another chance, to begin again, in a new world of its choice. However, that power failed to specify the Arbiter's new purpose, and dumped the belligerent sangheilli into a world that tests his very patience every moment of every day. Will he finally discover the source of true peace here, in this colorful, pony-filled world, or will he burn the fetid, cutesy, scum-sucking, human-loving planet to its bedrock!?

...Probably the latter.

Red Vs Blue Xover!

Church, the Alpha, was fairly sure he would die when he went to confront the Meta. Dead or not, he didn't expect to wake up in a forest, and not as a horse. A horse with a horn, wings, modified armor, and mounted firearms- but still a horse. Because he refused to call himself a pony, no matter what the locals said or how much Tex teased him! Now he just has to try to save his fractured mind. The AIs, luckily or not, are there to help him as they explore this new world.

Meanwhile, his loud and painful(for him) entrance into their world has brought a great amount of attention to the mysterious being that is now wandering through Equestria. The ponies best tread carefully. After all, the Alpha's "pack" can be protective.

May be Harem/Marem/Herd.

PS The Dark tag is mainly for Alpha Church's canon back story.

The Meta, a murderous creature , the scourge of The Reds and Blues, and the ultimate amalgamation of man and machine, has died. Dragged off a cliff and drowning in the icy ocean below, what a dishonorable way to be killed. If he was going to die, he wanted to die in fair combat, by the hands of one who earned it. Not by three cowardly, tricky red soldiers and a wrecked Jeep.

But instead of giving into the cold embrace of the afterlife, he fought tooth-and-nail against Death itself.

He soon gains a second chance at life, though in an entirely new branch of reality.

So, here he is, in Equestria.

Red vs Blue crossover with My Little Pony: Friendship is Magic

Gore tag added just in case. I mean, the guy carries around a four-foot Knifel, what did you expect?

Spartans never die, they're just missing in action. This has never been more true for Jorge-052 as, after activating the slipspace drive that was supposed to kill him, he is instead flung into a strange world where war is but a distant memory. Will the aging soldier be able to adapt to this new peaceful planet? Or will his only salvation be found in finding a way back to his own chaotic universe?

(It's my first time, so be gentle)
Now featuring a TVTropes page by Sabo88

"The way to salvation is through the path of damnation..." Supreme Commander of the Helldivers 33rd.
It is the year 2551, in the depths of the galaxy, a war between mankind and the covenant rage on, both sides are determined to win at all costs, and neither is going to back down. For the human race it is survival against a hostile alien threat. For the covenant it is victory for their gods and the ascension of their races to godhood over all.
But in the years of the war, soldiers grow tired and many seek to end the war soon, but their efforts result in bloodbaths across the stars. After so many years the human race manages to cripple the covenant and break the deadlock which had been holding them. And now they are on the doorstep of the covenant. But when an accident during a campaign sends the lives of marines to a place that war is but a memory, how can they adapt? And what dangers follow thse marines?

This story will involve some drama. Swearing, a little violence and action, but not much, at least not until i decide to change the story or adjust it.
The characters are anthro so please keep that in mind, and also note that the image used is from STTheo of Deviantart who i asked with expressed permission about his Helldiver units and their designs, which i altered for my OCs, so keep that in mind. And we might see some other things come around as the story progresses. So i'm not sure how it will go.

There is a legend. A legend of six heroes destined to protect Equestria from danger. But these six are not the Elements of Harmony. They are more.

The Steadfast Commander.
The True Genius.
The Vigilant Eye.
The Merciless Wrath.
The Fighting Spirit.
The Lone Wolf.

They are the true Protectors of Equestria.
They are the Guardians.
They are Noble.

Alright, so here is the story I have teased on my blog, The Noble Guardians! If you already guessed the concept, good for you! But for the rest of you, this is a Halo: Reach Crossover. I have seen a couple fics in which Six or Jorge are brought to Equestria, but they were always alone, so I decided to bring them all together as one. This will follow the show's storyline, with Noble acting as additional characters to the episodes, but don't worry, I guarantee they will be major characters with their own arcs and there will be plenty of original situations. I will also most likely skip any episodes in which Noble would have little to no involvement. (This will be few and far between, one example being "Call of the Cutie" I mean, even the Mane Six are only minor characters in that episode. I'll probably either mention those in passing or have another story going on with those episodes occurring in the background.) Anyway, see how Noble reacts to becoming Equestria's destined protectors!
Cover image credit goes to Gekko3309.
Naturally, this story contains spoilers for Halo: Reach

The planet destroyed. The flood gone and the covenant obliterated.
All because of one man, Sergeant J. Forge. The man who literally stared death in the face to save those aboard the 'Spirit of Fire'.
But what if the detonation of the slipspace drive tore a larger than intended hole in the fabric of space, essentially creating a portal to another world.
What if Forge hadn't perished on that day, but awoke to find himself in a completely new and foreign world ?