An elite team of seven ODST are sent to sabotage a Covenant Super Carrier when things take a turn for the worst: the carrier sets off radiation and jumps into slipsace, sending the seven into an unkown land of Equestria. They are scattered far and wide, with no knowledge of each other's lives. The land is inhabited by talking horses and the seven need to figure out what went wrong and not get banished by the local monarchy by sudden infiltration on her land. They seven also are known to be 'The Squad' and will they get back to New Mombasa and stop the glassing of it?

A crossover of Red Vs Blue - the Halo Machinima series - and My Little Pony: Friendship is Magic, primarily starring Epsilon, who is recaptured within the Epsilon Unit and finds himself in the land of Equestria. Will the resident ponies and him become best friends, or will the situation degrade into a flurry of insults?
Hedge your bets, folks.

(CJ)Cave Johnson here, (TW)Twilight Sparkle here, (CJ)and we will be testing the least safe parts of science possible! First, we're going to see if we can turn Scootaloo into a chicken! (TW)For science! (CJ)Yes yes, for science! Then we will see if Applejack can survive if we replace her apple trees with combustible lemon trees! And last but not least, you all might have wondered, what happens when you give Pinkie Pie coffee? Well, we're about to find out! (TW)For science! And many more! The possibilities are endless!

After a mishap involving the Transportalponder, the Courier finds himself in a place he doesn't recognize. With no way back and nothing else to do, he decides that wandering into the nearest town is the best option. Being the Courier, things aren't that simple...

A Fallout: New Vegas/My Little Pony: Friendship is Magic crossover

The style alternates between omnipresent third-person and the Courier recounting his tale to... Well, take a guess.

For almost a thousand years, the immortal Nightmare Moon has reigned over Equestria as Empress. To the average pony, Nightmare Moon is an overarching enigma whose rule is absolute and whose wrath is terrible. But to Twilight Sparkle, who as an orphan has never known her parents, the Empress is something else entirely. When the young unicorn is brought under the royal wing as an apprentice, she learns a great deal more about the supposed tyrant than she ever knew. But as Twilight is introduced to life with her new mentor, she is thrust into a world of political intrigue, conspiracies and secrets. Secrets that were never meant to be revealed. As allies and enemies plot against the very peace of the nation, will Twilight fall prey to the perils of her new position? Or will she prosper and find in Nightmare Moon the mother she never had?

============

My eternal gratitude to my editor, LordOfTheWrongs, without whom Night's Favoured Child would not be the story it is today.

Now with added TVtropes!

After a summoning spell goes awry, Twilight somehow manages to bring three of the biggest badasses in gaming history into Equestria. After trashing part of Ponyville in an impromptu brawl, they are brought to Celestia. What could possibly go wrong?

Crossover with Fallout: New Vegas, The Elder Scrolls V: Skyrim and Mass Effect.

Jorge and Noble Six are among the few humans to ever destroy a CSO-class Covenant supercarrier. This occurred during Operation: UPPER CUT but at a heavy cost. Along with the destruction of the "Long Night of Solace" came Jorge's death.

Or so it seems...

*First Fanfiction Warning*

With Project Purity destroyed, his father dead, and his old home shut off from the rest of the Wasteland, the only good memory of his past that William Madison can hang on to is the lullaby his father sang for him, and him alone. When he finds himself in Equestria, he would've taken it in stride, but it changes when he hears that same lullaby - HIS lullaby - in this strange world. Confused, William must find the connection between the lullaby and his life.

A science fiction story about how a fantasy world came to be. An alicorn foal awakens alone in a world that sentient life has long since left behind. This story follows Luna through her foalhood in the strange world, her quest for knowledge about who and what she is, and what happens when she finally finds her answers and makes the trip to the beautiful new world that her sister now rules.

Cover image: Luna in the Sky with Diamonds by Noctudelic

Author's note: This was my first story, and even though it's complete now, feedback is still very much appreciated. My biggest goal here is to continuously improve, so every two cents helps.

After finding hints to an ancient, library, Twilight leaves home to attempt to discover what Star Swirl couldn't... the legendary 'Vault of Origins'. This lost library is supposed to hold the histories of the Pre-Windigo Exodus civilizations and perhaps the origins of Ponykind themselves... but will she be able to survive the dangers that guard the Vault?