Disclaimer: I dont own 40k, or any of the unit names or anything else in here, but character names.
"Dear god emperor, in who's divine light I flourish, I beseech thee to grant me the strength to carry through this horror." Iron Father Zaltyd walked down the line of seated Iron Hands space marines, repeating prayers. The twenty odd soldiers answered in complete synchronization, a low rumble echoing through the halls of the dark dropship.
" I am a servant of the Emperor." began Zaltyd, rounding on his heel and beginning to walk down the length of the ship again. His voice echoed and boomed, thanks to the vox-system in his armor.
"We serve His divine will." replied the marines at once
"I fight for His peace."
"Blessed Be the warriors."
"I die for Him."
"Our souls shall be guarded."
"When our lord created the twenty primarchs to lead his forces through the galaxy, the traitor Horus was able to prevent two of the brothers from being found by the blessed emperor. One was sent back in time hundreds of millennia, unable to be found. We can only hope and pray that he has followed his mission and done his best for the human peoples that lived then. The cursed betrayer then prevented one of his brothers from being discovered by the Lord." stated Zaltyd, walking up and down again. "He was dormant and undiscovered for thousands of years. Now, he has been found." A thunderous cheer broke out from the marines. " The traitorous warriors of the 'Emperor's Children' converge on the surface of this unnamed world as well. There will be much fighting, and we will have to push through their lines, and reclaim our lost primarch."
The dropships ground into the wet sand of the beach they landed in, rain drenching the hulls. The sky was the color of a soot blackened bolter, and rumbled with thunder. The front gates creaked opens and teams of marines charged out, weapons raised. A massive venerable dreadnought exited a transport, motioning with it's massive fist, it's plasma cannon oozing energy. Zaltyd slammed a round into his shoulder mounted bolter and activated his power fist. In his left hand he grasped a power axe which crackled with power.
"Forwards! Crush them! Their flesh is weak, our iron blades are strong, or souls hard as steel!" he screamed. The booming voice of a dreadnought echoed across the beach, shouting orders to it's soldiers. The Space Marines surged forwards, a cloud of bolter fire erupting from them.
The Emperor's Children atop the dunes fell in droves, riddled by bolter fire. Brother Isaac of Zaltyd's platoon brought his weapon up to his eye and fired, streams of bright purple plasma arcing towards the traitors. A nest of traitor heavy weapons awakened, spewing out missiles and heavy bolter fire. The missiles were silenced by a well placed lascannon shot from a predator annihilator, and a dreadnought's multi-melta reduced the rest to a smoking heap of ash.
The Iron Hands leapt over the dunes, meeting the traitors in close combat. Chainswords and bayonets flashed, and brother Virag's flamer crackled and hissed beside Zaltyd. The Iron Father powered his energy fist and eviscerated a traitor marine, his blood fountaining into the rain. With a sweep of his power axe, another was cleaved from shoulder to pelvis and brother Czelgur ran up, chainsword covered in gore, and preceded to dismember a pair of Noise Marines, blood and entrails covering everything. A dreadnought charged in, inferno cannon spitting, knocking aside Noise Marines. With a scream, Brother Czelgur was shredded before Zaltyd's eyes. He barely had time to blink before his killer stepped over Czelgur's body.
He was clad in the whirring armor of a terminator, though desecrated with Slaaneshi symbols and with two great horns extending from the helmet. A pair of lightning claws dripped with Czelgur's blood.
"You are indeed a great warrior," it rumbled, eyeing the butchered Emperor's Children surrounding Zaltyd "This will be a kill to savor."
The beast came at him quickly, claws raised. Zaltyd fired his bolter twice and swung his axe at the terminator's helmet. It bounced off a power claw raised to block, and the second claw moved to stab. One of Zaltyd's servo arm's saved his life, grabbing the traitors wrist and twisting. With his momentum lost in his bulky armor, Zaltyd flipped around and crushed his body and armor all in one, blood running in rivers.
"Report." ordered Zaltyd into the vox link.
" Virag here, 3 dead."
"Isaac here,1 dead."
"Trythios here" voxed the deep voice of a dreadnought. "5 wounded."
"All right then marines, we'll set up a small camp here and wait for the White Scars to land. Until then, I want you all organized into large groups. Start looking around, see if you can find any indigious life. Someone will need to head to the shore to the east as well, the Kolstec 317th Imperial Guard have landed." ordered the Iron Father. A chorus of hasty affirmatives sounded, and the marines organized into groups and prepared to begin searching for their last primarch. Emperor's Children and Alpha Legion soldiers were landing as well. They would be dealt with just as their brethren had been. Mercillesly.