(Warning Tis a Displaced story!) Well... It sucks being in Equestria... I mean, yeah I'm a Brony... A closet Brony, but a Brony nonetheless, but getting sent there from a con by a dude who looked like the Resident Evil 4 merchant kinda sucks... And not because I don't get to see my family and friends ever again, but because I become a Sparten 4 under a minute... And then it hurts... And I mean it HURTS! I felt like I went through a grinder, then a wood chipper. It sucks... And all I have is Pathefinder armor, a DMR, and magnum. I also have Master Chiefs cloak from the Halo 5 trailer... What? I had to, I needed to look badass... And a have a knife like Emile's from Halo Reach... Once plastic now metal... Don't judge! You would've done the same fucking thing!... So... Hope you enjoy my misadventures in Equestria... That is, if you are reading this...

I own Nothing! All rights go to Hasbro for making My Little Pony.
And Microsoft for making Halo.
Enjoy the adventure!

This is a fic based on the Time Loop Files, the format of which was first codified by Innortal on fanfiction.net.
Here's a brief guide.
The basic idea is, one character (the Anchor, usually the main character of a fictional setting) is looping back to the very first moments of their parent series every time either they die or some kind of time limit expires. They of course end up monumentally stir crazy given enough time.
Eventually others start to loop as well.
The reset is not always perfect. Sometimes a loop's history will be different to the "prime" loop, or canonical plot.
"Crossover" or "Fusion" loops also occur, randomly. These can involve the home loopers having a guest, or the anchor for one universe spending time in another, or replacements of one character by another.
Vacation Loops are where the Anchor (or others) decide/s "buck it" and lets off steam by doing whatever comes to mind. There's little or no attempt to maintain the original timeline.

In addition, and particularly more recently, it should be known that this story has a collaborative element to it - people may submit loop ideas or loops, ideally at the Spacebattles thread (a link to the current version of which is on the Trope page), and they may become included.

There's two page image options, thanks to Filraen - the current page image has been edited by the original creator from this work of theirs.. The other one is here:
http://hourglass-vectors.deviantart.com/art/MLP-Loops-466030169