After a mishap at the League, Kog'Maw finds himself stranded in a new world. Will he manage to get back? Will the ponies get him back before he eats everything-or worse, everypony?

A League of Legends crossover, because why not?

An undead Emperor in need of a new body. A Spartan lost in space. A ragtag team on a suicide mission. What do they all have in common? They all wind up on the magical world of Equestria, where war has been forgotten. That, however, is soon about to change.
When each of them is about to be retrieved, ancient evils arise to unleash hell upon the unsuspecting world. When the forces of three galaxies clash around them, can our favorite ponies hold out against the onslaught?
This is a crossover involving Warhammer 40k, Halo, Mass Effect and MLP, and is also my first fanfic. Comments and reviews are welcome.
Rated T for language, violence, and general adult situations.
Now on Tv Tropes!

Michael Pegalos, Captain of the Blood Phoenixes Third Company, is called to the planet Tartaurus to eliminate an infestation of Hogs that have invaded the planet. But he will soon learn that darker secrets await him as the war goes on.

There are no other explanations other than it's Dawn of War cutscenes ponified. Some of the characters' names have been changed for non-plagiarizing and ponification reasons, and there might be some copyright stuff somewhere in which case belongs to their proper owners. I apologize in advance for not asking, but if you let me know I will mention it.

First expansion

(WarHammer 40,000 belongs to Games Workshop)

The Hive serves the Swarm. The Swarm serves the Queen. The Queen serves the Hive.
***
Chrysalis is dead. Deposed. So is the way of the Changelings. But now the Swarm comes to a point of contention: none of their kind removed her.

The new Queen must be... selected.

They ask the Hive for a choice. But the Hive chooses not. No, the Hive has something else in mind, someone else who should choose. And so do two cultures, utterly alien to each other, find themselves in a dangerous dance...

Equestria, desperate, trapped in a four-year aerial conflict against an enemy they can not beat, seeks an end to the war. Now, hundreds of miles from Equestrian soil, deep within the enemy's barren, mountainous land, an attack on the enemy force is their last option.

Slipstream’s success and the survival of her fleet, the last of Equestria’s worthy airships and captains, is based solely on the element of surprise and her own ability as fleet commander. But her fleet of the best of what’s left may not be enough to put an end to the war once and for all.

A strange creature wakes up in the middle of a strange land. In a thousand other worlds something similar has happened to a thousand other characters. There's just one problem; he's not from Earth. And he's not entirely human.

His home is a primative land ravaged by war, a far cry from the peaceful realm of Equestria. How will he react to a world full of sapient ponies? More importantly, how will they react to him?

Because, if it will take him, Equestria might just be the fresh start he's been looking for.

Takes place between Seasons 2 and 3.

Canterlot, after the great wedding.
The fight with Queen Chrysalis has left Celestia bereft of any energy, for an unkown spell the Queen wove into her attack drained it all out of her, true to the Changeling's parasitic nature. As she lies at the brink of death, an old pact becomes effective, a pact to ensure the Princesses' safety and survival.
But every pact has its price. And the force behind it is not one to be bargained with.

A/N: A great many thanks to my friends Novelty and Flynt for the proofreading and the much needed encouragement!