The breach between realities (SCP OC x creepypasta universe)

Mission Log: Segment Eleven

*Evan's POV*
My team and I stood on the edge of the border between Mexico and Texas. Border Patrol had tried to rush us earlier, but when they realized we weren't human, they retreated.
"No doubt they've got reinforcements coming." I sighed "They might've even gotten ahold of the National Guard."
"So we are fighting against time as well as an immortal dragon." Able summarized "We will need to work quickly."
I nodded and Gehenna erupted into my hand.  I spun it around and slashed the fence four times, cutting a square-shaped hole into it.
"Let's move."  I ordered.
We stepped through the hole and walked across the desert.  We could hear a low rumble in the distance and as it shook the very ground we walked, it felt like the whole world was a growling animal baring its fangs at us.
"What is your plan to beat that monster?" Soul asked.
"I don't have one." I answered "In his files, the research team put him in a box with 96 to see if they could kill each other.  When it was over, the freaks were sitting on opposite sides of the containment cell, knee-deep pool of their own blood and intestines."
"That's... extremely disturbing."
"The point is they put two of the most bloodthirsty anomalies in a box, and neither of them died.  It took disintegrating 96 to put him down.  I honestly don't know if I have the firepower to cripple 682, let alone kill it."
"I suggest you think of something soon." Able said, "We have company."
He pointed up at the sky and I squinted against the sunlight as a small dot appeared on the horizon.  The dot grew bigger by the second until eventually I was staring up at a forty-foot long monster with giant leathery wings, scales that shimmered in the harsh sunlight, and bones sticking out of its spine, elbows, and tail.  Smoke coiled in the air as it escaped through the gaps in its teeth.
"Holy shit." Able gasped.
"What in all heaven have these people been firing at him?" Soul asked.
"THE PUTRID DEVIL CHILD." 682 snarled "I WONDERED WHEN YOU WOULD FINALLY SHOW THAT DISGUSTING LITTLE FACE OF YOURS."
"682." I huffed "You look... shiny.  You get some work done?"
"THE PATHETIC DEFENSES OF THIS WORLD HAS GIVEN ME AMPLE OPPORTUNITY TO IMPROVE MY POWER."
"Shot in the dark, did they use nukes?"
"SEVERAL."
"If you wanted one of those you could've asked me."

(A/N: Anyone get the reference? First one to call it gets a shoutout in the next chapter.)

"THIS WILL NOT END LIKE OUR FIRST ENCOUNTER."
"We'll see. Abaddon?"
Abaddon erupted out of my back in his true form with his arms crossed over his chest while the sand around me turned to glass.
'I don't know if you and I will be enough to stop him.' I thought.
'WE HAVE ALTERNATIVE METHODS, BUT THEY ARE RISKY.' Abaddon replied 'THEY ARE BETTER USED AS A LAST RESORT.'
682 roared and light glowed in the back of his throat.
"Scatter!" I yelled.
The rest of my team broke off and surrounded 682 as fire exploded from his maw.  Abaddon used his body as a shield, then breathed fire back in the croc's mouth.
"Hit him hard and don't let up for a second!" I yelled, "If he adapts it's all over!"
Able leaped into the air and brought his sword down on 682's back, slicing it open like a knife through warm butter. Steph used her powers to blow chunks out of his body while I shot into the air and screamed as I brought Abaddon's fist down on his head, slamming his jaw into the sand and shattering at least half his teeth.  682 laughed and a chill ran down my spine.
"PATHETIC." He snarled.
682 roared as his scales turned black like obsidian and he swatted Able across the desert with his tail, then tried to eat Steph.  She screamed in terror and his maw vanished completely, only to grow back seconds later, made entirely of telekill alloy, making it invulnerable to her powers.
"Steph!" I yelled as 682 went at her again.
Abaddon disappeared and my feet hit the sand for a second before I shot between Steph and 682.  I had barely enough time to push her out of the way before 682's maw slammed shut with me inside.

*Third POV*
Able, Soul, and Steph watched in horror as 682 swallowed their leader whole.  Steph shook her head slowly before wailing in agony as she dropped to her knees. Able scowled and screamed in rage as he charged 682, only to be pinned beneath the lizard's massive claw as it laughed loudly.
"THE BERSERKER." He said amused "TO THINK YOU WOULD THROW YOURSELF AT CERTAIN DEATH FOR ANOTHER. YOU HAVE GROWN WEAK."
"Rot in hell you fucking monster!" Able shouted, "I'll kill you!"
"HOW DO YOU INTEND TO DO THAT WITH NO HEAD?"
682 roared and opened his maw as he moved to take off Able's head.
"Enough." A man ordered.
Everyone turned towards the voice and saw a man in a tattered burlap cloak. They could see his limbs were replaced with cybernetic ones, with glowing blue lines running down them. 682 snarled and backed away as the figure removed his hood.
"Cain." Able gasped.
"Hello, brother." Cain greeted.