DOOM: Hoof-Deep in the Dead

Prologue

It was like any other day at the EAC (Equestrian Aerospace Corporation) Facility stationed on Hars, the closest neighbor to Earth--where the great nation of Equestria stands. Scientists, for many years, have been working on a top-secret project titled "Magicless." The goal is to teleport ponies safely over long distances without the use of Unicorn Magic. Using only science and standard magic, the scientists of EAC are working around the clock to provide what Equestria might call "The greatest form of transportation ever." But wait! Something is wrong with the hardware of the teleportation pads! They normally glow a warm yellow color, but they are giving off a hateful red color for some strange reason. Is something wrong with it? In less than an hour, the new-world transportation system stops sending things to Point-B, and starts bringing things from Point-H. Within minutes, the base is being swarmed by unstoppable foes, demons... and the onslaught of many ponies begins. Heads are ripped off, torsos ripped in two, (and still attached via hips) and the survivors are mutilated and hanged--still living.

One stallion is left unharmed in the base, though. While inside his personal quarters, he somehow survives the massacre. When he awakes from his slumber, he hears his personal radio blow up with chatter from his comrades. The radio crackles and hisses, but he can make out screams and the sounds of carnage. "Get...Off-!... Gah! There's too many! Pull-.... Oh Shi-!..." Then static. Only the sounds of the radio's screaming can be heard now. The stallion suits himself in his green armor and grabs his pistol with his mouth, positioning it to fire. The stallion trots to the nearby elevator, the location of the distress signal. As the elevator meets with its last floor, it makes a loud ding sound; the marine then knew it was time. He has to prepare for hell.

Hell has to prepare for him, too.