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Red vs Blue vs Green by Hannibal-Necromancer97 reviews
Master Chief and Cortana receive word that a certain coworker of Dr. Halsey is using humans in live-fire simulations to train his soldiers, the Freelancers. They are sent to a canyon in the middle of nowhere to get the two teams to cooperate long enough to resolve the matter. (everything is heavy-AU, so things may not match up with what's currently going on. Language ahead.)
Crossover - Halo & Red vs. Blue - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 5,179 - Reviews: 9 - Favs: 21 - Follows: 25 - Updated: 3/28 - Published: 2/22
Sergeant Johnson's New Gig by Lord Izanagi reviews
Avery Johnson has seen and survived it all. Covenant, Insurrectionists, the Flood. But after the betrayal of a certain insane Monitor leads to his death on the Ark, something extraordinary happens. By mysterious means, the one-man legend inexplicably finds himself alive and well in the beautiful magic-filled land of Equestria. What things await in store for him there?
Crossover - My Little Pony & Halo - Rated: T - English - Adventure/Friendship - Chapters: 12 - Words: 49,441 - Reviews: 45 - Favs: 31 - Follows: 45 - Updated: 10h ago - Published: 10/11/2013 - Rainbow Dash, Princess Celestia, Princess Luna/Nightmare Moon, A. J. Johnson
Halo 45: Equestria by Heyimawriter reviews
My first crossover
Crossover - My Little Pony & Halo - Rated: T - English - Humor/Sci-Fi - Chapters: 1 - Words: 193 - Reviews: 1 - Published: 11h ago - Master Chief/John-117, Cortana
Spartan Inheritance by pjmb13 reviews
It's been 18 years since the Battle of the Hellmouth. A new family has moved into Sunnydale, the parents are no strangers to the place and its "unique" environment. Their oldest daughter Adriana Lehane is starting high school and seems like your normal teenager, but she has her own secrets and special abilities. She will need everything she has to face the awaiting challenges.
Crossover - Buffy: The Vampire Slayer & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 21,677 - Reviews: 4 - Favs: 3 - Follows: 5 - Updated: 15h ago - Published: 8/4/2013 - Xander H., Buffy S., Faith L., R. Giles
Consumption by PsychoMike5469 reviews
This is my first Fanfic ever and would greatly appreciate some feedback. Something ancient is stirring, something that is far worse that anything anyone in the PJO universe has ever encountered. Slight Gears of War as well.
Crossover - Halo & Percy Jackson and the Olympians - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 13,601 - Reviews: 10 - Favs: 5 - Follows: 4 - Updated: 17h ago - Published: 3/8 - Gravemind, Annabeth C., Percy J.
Book One: Dawn of a New Age by DragonheartODST reviews
Humanity had proven resilient during the Human-Covenant War. Now with the discovery of the stargates, the Caelum Federation plans to explore the entire galaxy. But when they come across an enemy just as powerful as them wll the Federation be able to stand against it or will the Federation be split by civil war? Can the actions of one team be able to save everyone they know?
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 42,414 - Reviews: 36 - Favs: 37 - Follows: 53 - Updated: 18h ago - Published: 11/16/2012
Inheritors of the Mantle by Sempiternal Ether reviews
The Reaper War has come to a close, as has the Human-Covenant War. Both societies are increasingly unified and secure in their positions. What happens when they come into contact?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 62,103 - Reviews: 508 - Favs: 365 - Follows: 434 - Updated: 19h ago - Published: 3/23
The Incident at Relay 314 by NAFB reviews
During a routine patrol, a Turian flottila encounters a new race activating Relay 314. The ensuing events will change humanity, council space and the individuals involved.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,048 - Reviews: 12 - Favs: 32 - Follows: 68 - Published: 21h ago
Justice League: Spartan Time by A-BOMBLIKEABOSS reviews
Jack Fernandez was once your average teen. Until he got sent to the Halo universe with Spartan 2 augmentations, then was sent to the Justice League universe. How will Earth's heroes react to a soldier from the future? OC/Harem
Crossover - Halo & Justice League - Rated: T - English - Romance/Adventure - Chapters: 5 - Words: 6,835 - Reviews: 12 - Favs: 12 - Follows: 15 - Updated: 4/18 - Published: 4/13 - [OC, Beatriz da C./Fire, Diana of Themyscira/Wonder Woman, Dinah L./Black Canary]
RWBY: Hyper Lethal by Icesquall reviews
Spartan-B312 survived Reach, but not without a great cost, he proceeded to fight with through the rest of the war with John-117 and in the latter parts, Thel Vadam' the Arbiter. Peace now reigns in the UEG/Sangheili controlled space. In the midst of this, a certain event happens to our Spartan during a test for the new Mark X series of MJOLNIR Powered Assault Armor
Crossover - Halo & RWBY - Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 30,045 - Reviews: 67 - Favs: 45 - Follows: 54 - Updated: 4/18 - Published: 3/30
Destro and RWBY by HaloGoji75 reviews
Fire Team Destro has made it to the RWBY universe. Burn pesters Ruby for a scyth-file, Weiss tries to figure out how Matt is a suicide bomber that can't die, Hicks is annoying, Yang is angry, and Grant and Blake are begining to wonder if they are the only ones with any sanity on their respective teams. Things may get a little crazy. By crazy I mean bat-s@# crazy.
Crossover - Halo & RWBY - Rated: T - English - Humor/Sci-Fi - Chapters: 7 - Words: 8,909 - Reviews: 12 - Favs: 11 - Follows: 14 - Updated: 4/18 - Published: 3/23
Human Knight by HKH4 reviews
a three way cross over, hope you like! old name was Marine story
Crossover - Halo & Spice and Wolf - Rated: T - English - Chapters: 6 - Words: 6,324 - Reviews: 9 - Favs: 3 - Follows: 5 - Updated: 4/17 - Published: 2/2/2013
Avatar: rise of anti-benders by invincible824 reviews
After a hundred years of war, the avatar Aang thinks he can live a normal life, but the ONI take this peace to create another war where it will test all benders.
Crossover - Halo & Avatar: Last Airbender - Rated: T - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 9,467 - Reviews: 13 - Favs: 4 - Follows: 3 - Updated: 4/17 - Published: 4/30/2013 - Serin O./Serin-017, Aang
Fallen Brothers by TheLastSurvivor14 reviews
It has been seven months since Adam and Anthony became Razor and Patriot. And now that the war rages throughout the galaxy, they will need all of their strength to help them get through these dark times. Feelings for close friends will begin to grow, secrets will be learned, heroes will be tested, and an ancient evil will rise. [AhsokaxOC, BarrissxOC]
Crossover - Halo & Star Wars: The Clone Wars - Rated: T - English - Adventure/Romance - Chapters: 6 - Words: 8,034 - Reviews: 1 - Favs: 3 - Follows: 3 - Updated: 4/17 - Published: 4/16 - Didact, Librarian, Ahsoka T., Barris Offee
Halo: Elemental Storm by Asgardian Dovahkiin reviews
Sequel to Ancient Elements. Several months have passed since the awakening of Didact and the attack on Earth, Avatar Korra tries to adjust to what is to come, both from the growing presence of the UNSC and from the evil that comes from beyond. Rating is a subject to change.
Crossover - Halo & Legend of Korra - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 12,087 - Reviews: 18 - Favs: 17 - Follows: 16 - Updated: 4/16 - Published: 1/20 - [Korra, Mako] [S. Palmer, T. Lasky]
The Infinity Effect by creamofwheat2311 reviews
After discovering a Precursor artifact, the UNSC Infinity and the Sangheili Shadow of Intent are transported to a universe unlike anything they have ever seen, and forced into a war against a foe they never could have imagined: the Reapers. Alliances are founded, friendships are formed, and decisions are made that will change this galaxy forever. Post Halo 4, Pre ME3. AU
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 76,805 - Reviews: 752 - Favs: 854 - Follows: 1,105 - Updated: 4/16 - Published: 10/9/2013 - Master Chief/John-117, T. Lasky, Admiral Hackett, Shepard (M)
Spirit of Vegas by aoj95
Left adrift after the battle at the shield world, the Spirit of Fire floats aimlessly through space. That is until, it comes across an anomaly in space. Now at an unknown world, what does the future hold for the ships crew?
Crossover - Fallout & Halo - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,810 - Favs: 5 - Follows: 6 - Published: 4/16
Meeting Old Friends for the First Time by M306117 reviews
Ever wondered what it'd be like to meet your own characters in real life, how cool it would be? Yeah, not so much.
Crossover - My Little Pony & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 13,875 - Reviews: 14 - Favs: 12 - Follows: 8 - Updated: 4/16 - Published: 3/25
Last of Us: Soldier from the Future by alexisg200 reviews
I made this story out of the blue also no i am not going to give some elaborate explanation as to how my OC made into the last of us universe because and i know this sounds like some bs excuse but it's because my oc doesn't how he got there. but i hope you enjoy also please be gentle with your reviews
Crossover - Halo & Last of Us - Rated: T - English - Adventure - Chapters: 2 - Words: 2,113 - Reviews: 2 - Favs: 1 - Follows: 4 - Updated: 4/15 - Published: 4/6 - Ellie, Joel
The 6th Wave by TheBurningWorld
After Six 'dies' in Lone Wolf, he is sent to Earth after the 5th wave. The locals are unsure of whether or not he's an Other. No one trusts him, however he may be their Savior.
Crossover - Book X-overs & Halo - Rated: T - English - Adventure/Friendship - Chapters: 1 - Words: 248 - Published: 4/15 - SPARTAN-B312/Noble Six
Fires of War Part 1 by gwb99 reviews
As the UNSC recovers from the horrors of the Human-Covenant war A new power rises and brings humanity to the brink of extinction, again.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 24 - Words: 17,061 - Reviews: 33 - Favs: 18 - Follows: 28 - Updated: 4/15 - Published: 12/4/2013 - Darth Vader, Stormtroopers, Rookie, Serin O./Serin-017
Destro PSA: RWBY pairings by HaloGoji75 reviews
Fire Team Destro talks to the RWBY fans about Pairings. nuff said.
Crossover - Halo & RWBY - Rated: T - English - Humor/Parody - Chapters: 1 - Words: 474 - Reviews: 4 - Follows: 1 - Published: 4/14 - Complete
Ashes to Ashes by X2117 reviews
The sequel to the Legend of Roland... Taking place approximately six months after the events at the end of Legend of Roland, Korra and Roland are thrown into a new fight involving friends and enemies from the stars. Rated T for violence.
Crossover - Halo & Legend of Korra - Rated: T - English - Adventure/Romance - Chapters: 4 - Words: 11,374 - Reviews: 33 - Favs: 27 - Follows: 29 - Updated: 4/14 - Published: 2/16 - Korra, Mako, Bolin, Tenzin
Remnant Dawn by LolCaptain reviews
In the end of Halo 3, John, Thel 'Vadame, and Daniel (Basically me) have somehow traveled into the world of RWBY. An unexpected enemy arrives arrives on the scene and will forever change the world of Remnant. What will become of our heroes? I dunno, I haven't even gotten there yet :D
Crossover - Halo & RWBY - Rated: T - English - Adventure/Humor - Chapters: 3 - Words: 5,730 - Reviews: 12 - Favs: 12 - Follows: 20 - Updated: 4/13 - Published: 3/19 - Master Chief/John-117, Arbiter, Ruby Rose, Blake Belladonna
Blurred Lines by Mc.Moog reviews
What if John went through a time vortex in space sometime between Halo 2 & 3 and finds the Ghosts? Rated T for Language and some violence.
Crossover - Halo & Call of Duty - Rated: T - English - Adventure - Chapters: 1 - Words: 980 - Reviews: 1 - Follows: 1 - Published: 4/13 - Master Chief/John-117, L. Walker
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