Marcus slumped to the floor, a drawn out "oooooooooooooowwwwww" his only response to William's prods. Shrugging, the man picked up Hayden's torso and left him suspended.

"The final Priest is hidden on Sentinel Prime." Hayden drawled, "However the only functional Slipgate lies in the city of Hebeth."

"In the core of Mars."

William audibly groaned, and said, "Alright, set it VEGA. Let's just finish this up."

"You can't drill a hole through Mars. We don't have time."

"Blow it open then."

"With what?"

...

"I understand. Searching the coordinates to the BFG-10,000 now."

"Wha- you can't just shoot a hole into the surface of Mars!"

"Watch me bitch!" William replied, readying the portal.

"I- something is messing with the Slipgate's coordinates, quickly! You have to jump through!" Hayden cried urgently; Marcus was up and through within a split second, right on The Slayer's tail as the 'gate disappeared.


Phobos


"Hostiles approaching the BFG-10,000!"

Hell had come knocking, and no one answered the door.

"C'mon, ya bastard, let us through!" A voice shouted, "There are people dying down there and it's our job to help them."

"Hey! Who are you!" The UAC guard turned toward the demonic genociders "You can't be... here."

"Gun."

The UAC guard let his plasma rifle be taken and tossed to the newcomers.

"You four, we're heading out there, suits in the lockers, get em on. You." The Slayer rounded on the guard, glaring.

"Move." He growled, and shoved past the man, joined by the quartet and his Apprentice. As they rode the elevator down, he went to the point.

"Names, first or last."

"Coco, Velvet, Yatsu, and Fox."

"Alright, ladies and gentlemen." Marcus spoke with a flourish.

"Let's welcome our fucking guests."


Turns out the newbies weren't as new as William had thought, they all worked well together but seemed to utilize some form of elemental ammunition, though he filed that away for later.

A stream of missiles and a burst of rockets took the Elemental down in no time, which William thanked his swapping skills for, fuckers were already a pain back in the day.

The six found their way to a series of escape pods and launched their way to the Mars surface.

"So, where exactly are we? This doesn't seem like where we're from." Coco asked, "Right now? Right now we just shot a hole in Mars and are heading for a Slipgate to take us to an old city." Marcus replied,

"We do our thing there, and we send you on your way, just keep moving, don't get cornered and have an escape plan and you'll be golden." Will continued, "Speaking of, be careful, we'll have to jump across."

"What is this pl-" Velvet's question devolved into a slight shriek as a Baron and its twin appeared,

"Stay aware of your surroundings and take care of the small guys, We've got the Bruisers!"

Gunfire tore through flesh as casings tinkled against the dirt, soon they'd passed through the UAC building and finally landed in Hebeth.

"Almost done, kids," William huffed, "We get through here, kill our evil clergyman and you're all home free."

"We've been here all of an hour and I'm already sick of this fucking place," Coco groaned,

"Oh yeah, try this shit for two months, nearly dying about 200 times, and having a bipolar partner who goes from lovable goofball to insanity-ridden demon murderer in a shell rack." Marcus replied, "You get used to it after a while."

"Get ready, boys and girls, arena time!" The Slayer grinned.


Sentinel Prime (don't blame me it's three in the morning rn)


"Enjoy the scenery, because we're about to fuck it up."

The six moved at a moderate pace, content to get their job done and be done with it. They rode the elevator up and steeled their nerves.


"Get around the shield!" William yelled, opening fire with the chaingun. The Gladiator roared and swung its mace in return, to which six people dodged and returned fire. Leaping in, Marcus and Velvet swung off some zombies and blasted the Gladiator from either side, with it stunned, William dove for the shield, jabbing the Doomblade into one of its eye sockets. Dropping to one knee, the Gladiator stood up again, drawing a second mace.

With a hailstorm of plasma, shells, and bullets tearing through its flesh, the Gladiator stood dazed, and went down as William hammered a hit onto its chin, then smashed its head into pulpy gore with its own mace. Heaving, The Slayer lowered his Super Shotgun, barrels freshly stained with demonic blood.

"This stops nothing! The consumption of Earth-" Grav hissed, before his head was blown to a mist with a boom of the SSG, All at once, as the Priest's body fell and the Slipgate materialized, Sentinels, armed with red Argent spears filed out in a line, the four newcomers had disappeared into the Slipgate, which had disappeared and reappeared,

"We must leave immediately." VEGA said, and William sighed, resigned. "So it's come to this," he spoke quietly, stepping back into the portal.


The Fortress of Doom


Stitching magnets into glove was hard as fuck to do, at least that was what Marcus thought, either it's pull wasn't strong enough, or it wouldn't stay in the glove, or...

"Let me," William said, taking the gloves finishing them up,

"Alright, there you go, magnetic gloves... hm?"

(Cue the Khan Maykr's "stronghold is your prison speech)

William glanced at where the Khan had appeared and smirked, "Prison? Yeah right."

The Fortress buzzed as another Slipgate opened without prompt, perplexing the four present.

VEGA spoke, answering the unspoken question, "These coordinates are the same as the ones from before,"

"To Phobos?" William asked, "Or is it that other place?"

"I am unable to see where, something is interfering with my system."

"Alright, we'll check it out."

VEGA buzzed, "If you intend to, I should leave now, I cannot keep the gate open long.

The Slipgate seemed to actually shudder and quake at that, and so the two Slayer's filed through once more as the portal shut on their heels.


Alright fuck it, crossover arc because I'm tired and want something else to write about.