Adventure, mayhem, magic of unknown origins. Oh, and talking ponies. These are the strange events that have brought three friends together into the wildest holiday that anyone could imagine.

It starts as a small Halloween chat, where they showcase their costume designs to one another. However, due to events outside of their control, they soon find themselves in a new land during a turbulent time.

Now trapped in a case of mistaken identity, these friends find themselves thrown into the deep end, when a royal wedding they’re asked to assist with is suddenly interrupted, and the three of them soon find themselves on an extended holiday from any sense of reality they ever knew.

We now have our own An Extended Holiday TVTropes Page:
A big thank you to wille179 for setting it up.
A/N: Now I would like you all to know first of all, this is a collaborative work between myself and some friends. So if you enjoyed this, why not stop by and say hello to the other three writers of this story. I have included their links at the bottom here.
Team Extended Holiday
American Brony - Writer
Teal Speckles - Writer
Shawn820 - Writer
OmniKitsune - Writer/Head Editor
Biker Dash - Editor

Big thanks to Shawn820 for the great cover art.
WARNING: There are spoilers in the comments. Read the comments at your own risk. By all means, please add to the discussions.

This story is a sequel to Iron Hearts: Book 5 - Suffer Not the Alien to Live

Personnel log C-921825

Designation... Gear Works
Detachment... 38th Company, Dark Mechanicus sub-division
Rank... [ERROR]
Tacticae Specialization... [ERROR]
Planet Origin... Centaur III
Personnel Status... Active
Current Deployment... [LOADING]

(An Age of Iron side-story/mini-series.)
(Dark humor warning. Some grimdark themes.)
(Cover art by Underpable.)

We all know the message. The warning, given to us by the riverman.

"Beware the man who speaks in hands."

This message was warning us about the mysterious being known as W.D Gaster, the Royal Scientist before Alphys. The man who created the CORE which gives life to the Underground. A mysterious skeleton that, in a failed experiment, was blasted across time and space. Lost in the Void between worlds.

Yet now, one day after what seemed like both millenia, and an instant, the good doctor falls into a new world with new problems.

And a new enemy.

One day in Sweet Apple Acres, Applebloom still tries to earn her cutie mark but she starts to hear a voice come from a little object in the orchard.

I was sent to a strange land full of talking, colorful ponies, with a wooden mask that once put on, grants me powers that let's me bend the very laws of physics.

An American soldier, dedicated to his country, who has seen and fought in many wars, seeks out a way to escape his war ridden world and finds a new one. A planet free of death and wars. Where friendship, harmony and peace were plentiful. Or so he had first thought.
He came to the magical world of Equss to escape war, but now finds himself needed for it once again.
But this world was different. This time he could do something to truly stop evil. But that requires power. Power he will claim. Even if he has to shake the very foundations of Equestria to get it.

(Takes place before Luna/Nightmare Moon's return.)

[embed] https://youtu.be/qWgRZrqjGSc [/embed]

Not every MLP universe is as cuddly as the original. Whether it's the invading aliens, the slave-driving ponies, the powers I barely control, or the technology I only sort of know how to use, you've got a recipe for disaster. At least I've got one friend in this place, even if she's a pint sized horse who's even crazier than I am. I just hope I can come up with enough ideas to save our butts before something else decides to try to kill us. Or enslave me and throw her in jail. Whichever comes first.

Displaced, crosses over with "X-COM, Enemy Unknown" and "Your Human and You." Tags will be added as they become relevant.

War. Noun. (1) : a state of armed conflict between different nations or states or different groups within a nation or state.

"Soldiers are always preparing to fight the previous war" is a saying that is common amongst those of military profession. Equestria has not seen a war on her own soil in several hundred years. As such, would she be prepared for when such a thing happens? Of course not.

Battling the griffons and the minotaurs has been a challenge due to lack of experience. Fortunately, her armies adapted and started to hold her own. That was, until Tirek returned and aided in the fight to defeat Equestria. To keep his friends safe, Discord successfully defeated Tirek and sealed him away. The cost of fighting Tirek? Dying. Knowing that he would die, Discord summoned several creatures to protect his friends. These creatures, never seen before in Equestria, are very familiar with the concept of war.

This world has experienced their second industrial revolution and Equestria is at war, a World War, the first this world has seen. Equestria and her citizens have a lot to learn if they want to see the end of this conflict with their culture and way of life preserved.

Author's Note: I have deployed so updates won't exactly be plentiful. I'll definitely try to put them out but I'm pretty busy.

Author's Note V2: Deployment is done.

Author's Note V3: Gearing up for the next deployment, busy again.

Author's Note V4: Not deploying with unit, got run over by a car while walking

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?