Shirou and Artoria vowed to reunite as starcrossed lovers; this was not what they had in mind. Being reborn for some inextricable reason, they are flung to the far future. A world where technology has advanced leaps and bounds, a world without a need for heroes. Regardless, history must march on, and Fate has quite an interest in making some new heroes...

Master Chief had died and was remembered as the finest warrior humanity ever produced and would be remembered centuries after his death. However he is called to the past to save humanity from total extinction. Shouldn't be too hard it's just another mission to save humanity. Rated M just in case

Running out of time and options, a young woman summons a legendary warrior to be her Servant in the next Holy Grail War. But this warrior is not exactly what she expected...

For us, the storm has passed. The war is over. But let us never forget those who journeyed into the howling dark and did not return. For their decision required courage beyond measure, sacrifice, and unshakable conviction that their fight, our fight, was elsewhere. ... A memorial to heroes fallen. They ennobled all of us, and they shall not be forgotten. (FZ/FSN)

Noble Six, the Lone Wolf of NOBLE Team has been brought back as a heroic spirit. Since then, he has encountered and fought off many threats, throughout time and space, all of which seek the eradication of humanity. However, what happens when a new singularity appears in 2557? AS OF 12/15/2019, THIS FIC IS ON HOLD. IT WILL BE REWRITTEN SOON

A lonely researcher inventing what few people use. A lonely soldier believes herself about to lose her life in her last stand. Both have a dream deep within, to become shining heroes of Humanity, defenders against forces seeking to subjugate mankind. They do not seek fame, preferring to stick their identities in the shadows and become the Paladin Saints that ask for none in return.

Having lived the life as a tool for humanities survival amongst the alien threats, the Master Chief has finally passed on. Hailed as the greatest human to ever live, he has been summoned by the collective will of humanity for a job that required his assistance. A job on the same scale as the covenant and the flood. Preventing genocide was his greatest achievement, so why stop now?

A man died in our world. Meanwhile in Reach Noble Six was thrown by an explosion. Flooded by his two lifetime memories, realizing that he could change many things he started it by trying to save his fellow SPARTAN after he failed at Reach. Too bad he has E-Rank Luck, and was thrown to Fate universe, as Shirou. A two timed reincarnated person and a world where Kaleidoscope exist?

Reach, a world turned to glass, many died in a valiant yet doomed defense of that world. But there was one, who had passed the torch before he died. That torch allowed humanity to defeat the Covenant. That lone SPARTAN died, but his actions were noticed by the one known as Alaya and she made a contract with him, allowing him to fight to save humanity once more.

"Spartans never die, their just missing in action."- Office of Naval Intelligence Directive 930- just read it

Semi-serious or at least trying to be . After Kiritsugu dies, ONI scouts young shirou for the Spartan III program. Story set after Shirou saves the galaxy and right before Grail War. Let the zaniness begin! Shirou / Harem