Fall of Equestria: Bringer of Doom

"Damn it, he got away!" Spike shouted as he punched a wall.

"Dainn may have escaped, but his armies are crowding towards the south of Canterlot right now! We're going to need to fortify our position and dig in before those zealous shits try and take the city!" some guy said.

The crowd cheered in approval at his statement, but behind them all, standing between the shattered thrones, the Doom Marine stood staring at the tiny blip that was supposed to be a portal.

"The portal is still technically open on both sides," VEGA expositioned. "However, in its current state, it would take a great deal of Argent Energy to expand it while maintaining a stable connection."

Doom guy grunted as he racked his brain for ideas. Shooting it wouldn't work (as he already tried that, much to the wall's dismay) and punching it didn't do much (much to the thrones' dismay).

"Lord Slayer, sir," one brave soul spoke to the Doom Marine, "what plan do you have for that portal?"

"I wouldn't try anything else if I were you," Spike said, almost meeting the Doom Guy in height. "I mean, it's not like you could just rip it open."

Of course! How could the Doom Marine have neglected his tried-and-true method of solving problems?

Doom Guy cracked his knuckles.

"He's gonna rip it open, isn't he?" Spike blanched.

Doom Guy planted his boots firmly into the marble as he reached his fingers into the portal and gripped its inner ring. Argent surged from the fringes through his armor, his HUD flickering wildly as he began to force the edges further and further apart. The Doom Marine grunted and exhaled as he put more effort into tearing the portal open. Reality began to waver and quake before his might, and with one final pull, Doom Guy tore this dimension's anus asunder.

The hole gaped and flickered before Doom Guy as the ponies behind him cheered and whooped for him.

"Kill that bastard dead, Slayer!" one of them shouted.

Doom Guy jumped through the portal, and seconds later, it collapsed into nothingness.

When the Slayer landed on the other side, his boots crunched against the glass-like surface as he stood up.

He seemed to have teleported to an entirely different part of the world, as the sky was dark and full of storming clouds that let snow down while the buildings around him were made of the same kind of glass that the street was paved with.

In front of the Doom Guy was a massive wall of Caribou, all barring their hammers as they stood shoulder to shoulder.

"It's over Slayer!" some fucker shouted. "We've got you outnumbered 100 to one!"

This seemed like quite a problem. Thankfully, Doom Guy had a 9-barrelled solution that could solve up to 900 problems a minute. He reached into the ether and willed forth his preferred method of dealing with large crowds and began to spin up all three triple-barrels.

"Get him!"

The Caribou charged forth with a combined war cry as Doom Guy smiled broadly under his helmet.

He pulled the trigger.

15mm tungsten rounds poured forth from the Chaingun, each round ejected with more than 220,000 PSI as they found their new homes within the flesh and bones of the Caribou. The storm of firepower surged through their lines, shredding the iron and leather armors of the Caribou while reducing their flesh to a fine paste. Shrapnel and burnt flesh made up the scent of the city as Doom Guy strode forward into the carnage that his little friend laid down. The hundred Caribou were reduced to nothing more than a bleeding lump of seared flesh, broken bones and shattered steel as the Doom Marine stood at the top of the gore.

In the center of the city stood a massive spire, which VEGA marked as the source of streamlined Argent that the Caribou seemed to channel. A new target in sight, Doom Guy strode forth to end this species.

\\\//////

Dainn roared in rage as he sent a bed flying through a nearby wall, enraged that his only legitimate prize had been stolen the moment he looked away.

"How did they take that dumb cunt so easily!?"

Dainn was so enraptured in his own rage that he didn't even hear the gunfire that echoed through the Crystal Empire until it started to thunder from beneath the Crystal Tower.

"Slayer!"

\\\//////

Doom Guy felt another Caribou cry underneath his boot before he shoved his leg down through his chest, crushing bone and flesh with ease. He fired another barrage from the Chaingun before the cycling cylinders clicked as the weapon beeped.

"We are out of ammo for all weapons," VEGA said.

Doom Guy grunted before seeing another Caribou charging at him. The marine spun around the Caribou before knocking him to the ground and slammed the Chaingun above the poor shit's head, fitting him right in between all three rotating units. Doom Guy then spun up the gun, the chambers spinning fast enough to tear the Caribou's head apart in a twirling mess of gore, splattering innards all over the crystal pavement.

"Slayer!"

The Doom Marine looked away from the Caribou soup he had just finished to see another deadman walking. This one was wearing gold-plated armor and held a single-edged blade in his right hand as he glared hatred at the marine. Doom Guy accepted the unspoken challenge and released his hold on the Chaingun before cracking his knuckles.

"You dare to come into this world and oppose our great rule?" the baby cried. "You dare stand against the march of male dominance? You dare kill my fellow Caribou? You dare to stand against the almighty Lord Dainn!? This is your end!"

Doom Guy was about to charge at the apparent leader of the Caribou before his horns glowed a familiar red. The light arced towards Doom Guy before a paralyzing pain erupted across his flesh. The marine was frozen as he fought against the overwhelming surge of Argent, but only for a moment as Dainn lifted his left hand up, causing the Argent to lift the Doom Marine into the air.

"You are worthless!" Dainn shouted as he threw his arm out to the side.

The Doom Guy flew through the air in the same direction before he was slammed against one of the four large supports to the Crystal Tower. His armor buckled and a small fissure opened up on one of his back plates as bones began to crack under the pressure.

'Administering nanomachines," VEGA announced.

Before the pain could subside, Dainn hefted the marine out of the massive badass-shaped crater in the building before throwing his arm down.

"You are powerless!"

Doom Guy felt a few ribs snap as he was thrown down into the hard crystal surface of the ground, his visor cracking a bit as blood stained the inner glass.

"You are nothing compared to ME!"

Dainn threw his hand over his head, sending Doom Guy high into the air before he was brought back down with twenty times the force. Shards of crystals and dust burst out from the impact, hiding the marine.

"I am the legacy of a God!" Dainn monologues. "I am the heir to a throne that has existed before your kind learned how to walk! I am Dainn, the Lord of Caribou and I will be the one to slay the so fabled 'Slayer of Gods'. You might have killed those that our ancestors once worshiped for our power, but now you face a true force of might, so great that not even Equestria's Sun goddess could hope to resist! I am the pinnacle of male superiority, and when I am through here, I will find your world and conquer your sluts as well!"

"Rerouting excess Argent to BFG."

Doom Guy smiled as he rolled over.

"And look at you now, Slayer! Crawling onto your back to accept your fate as a whore! No, I don't think I'll kill you just yet. I think I'll turn you into a bitch and rape you until you need my seed to so much as breathe."

Dainn walked up to the Slayer and set a hoof atop his armored chest, twirling the sword about before holding it right over where most people's heart would be.

"I would if I were an idiot who didn't believe in vengeance," Dainn whispered as he scratched the Doom Guy's armor. "I'm no fool so obsessed with self-indulgence that I wouldn't kill the most prominent threat to my kind."

Dainn raised his sword into the air.

"DIE!"

And plunged his sword straight through the marine's heart.

Doom Guy hacked up a wave of blood, coating his face in crimson as he felt the Argent infused steel slice into his armor and flesh. The familiar burn of a Hell Blade seared his inner flesh as he hissed in pain.

It's not like he hadn't tanked worse.

Dainn faltered a bit and backed off as he heard the Slayer's dark voice chuckle.

"What... why are you laughing!? You dare laugh in the face of Lord Dainn!? I've pierced your heart with my sacred blade, and now here you are, dying at my hooves like you did to so many of my brethren! What about his is funny to you!?"

Doom Guy responded by materializing the UAC's pride and joy.

Dainn froze as he saw the weapon come from the ether, and felt the sheer power that began to charge in the barrel of the weapon. He could have sworn that a nightmare of a smile was bleeding through the Slayer's helmet.

A nearby Caribou that hadn't yet died stared in awe at the weapon before speaking his final words.

"That's a big fucking gun."

The world went green as Doom Guy pulled the trigger.