DOOM: HELL MAGIC

The marine frowned under his helmet. He showed both ponies something that was written on his PDA: 'I'll go first. Stay behind me.' then he advanced. He didn't get too far before he came to an intersection. He saw that the left side was blocked, leaving only the right, the front, and back the way they came. As much as Octavia didn't want to go on, she kept at it. Vinyl was right with her. "If I get out of this alive, I'll make sure you're praised as a hero of Equestria." said Octavia. The marine gave her a slight nod, then took the path on the right.

As much as he would rather be slaughtering demons, the marine knew that the ponies wouldn't survive in a fight. He had already seen enough dead ponies to make their rulers openly weep. That is, if what he had found out about them was true. He wasn't able to get very much data about Ponykind from the terminals he found. He did know that Princesses Celestia and Luna were in charge, but he didn't know the names of two other princesses. The data had been corrupted.

He came to a stop and the other two ponies froze. A dip in the ground ended in a pool of water that the marine saw was radioactive. He turned around and pointed behind them. Both ponies made way for him, and he led them back to the intersection. The path that was previously blocked had been unblocked. He didn't see any bodies, just more murky water. He had a feeling that whatever had moved the blockage might be down there, so he led them down the other path they didn't take.

Vinyl kept watch behind them in case something came up to attack them. She didn't see anything, but she had a feeling in her gut that told her they weren't alone. Octavia's ears had been drooping since they walked into the water, but they perked up when she felt something slip by her leg. She quickly tugged on the arm of the marine and pointed down. The marine looked down as well and saw that the water had been disturbed. At first, he thought that Octavia had just stepped in something very unpleasant, but then Vinyl pointed down and nodded.

The marine activated the Infrared(IR) vision mode for his helmet, and saw there was indeed something in the water. It was swimming too erratically for him to shoot, so he stowed his shotgun and pulled out a knife that he hadn't yet used. The blade was half the length of his forearm and almost as wide. Octavia and Vinyl shrunk back at the sight of it. The blade was sharp enough to punch through elephant and buffalo hide with ease. If whatever was with them was made of skin and bones, the marine would be able to stab through it. Provided he could catch it, of course. He actually got lower towards the surface of the water and waited.

He stayed still until the creature stopped, then shot out of the water straight at him. His lightning-fast reflexes allowed him to catch it with his free hand, and his other drove the knife deep into what he thought was its' neck. It reminded him of a worm, but it had a mouth with sharp teeth, and it cried out in pain when the knife pierced its' skin. Octavia shrieked as well and scrambled to try and get away. The marine underestimated how long the thing was when it used it's tail to grab Octavia by the ankle. It flailed around and sent water all over both ponies and even hit Vinyl in the face twice. The marine wrenched the knife around, causing the large worm to scream out in pain. Blood squirted out from wound and landed on both ponies in addition to the water. It wiggled to try and escape from the death-grip the marine had, but to no avail. the marine kept squeezing tighter and tighter to try and crush its' windpipe(if it had one).

The marine pulled the knife out and shoved it back into the open wound, driving it a little deeper each time. Vinyl cast a spell to set the thing on fire, essentially turning it into a living torch. The mouth of the creature stopped moving, but the marine started cutting. The rest of it started having small death spasms which ended when the marine finished cutting the head off. He then nodded at it and threw it into the water. Vinyl set the head on fire as well, and the marine led them away from the burning remains so they could use what light they could before they had to resort to the flashlights the marine had on some of his weapons.