The slaughter was glorious. Amphion couldn't contain the chuckle as the unbelievers fell under the Apostle's croizaz and his comrades' bolters. The mutants and heretics had stormed the bridge, as commanded, a howling tide of abominations and unholy devotees. Most had fallen, only thirteen still standing. At the moment, they were hunting down the last of the loyalists, autoguns, lasguns and crude hand weapons bared and ready in a pitiful attempt a proper military formation. The sorcerer was still reveling in the Apostle's blessing, feeling the power of his master flowing through his twisted, corrupted body.
It was glorious, and he laughed as he unleashed a psychic blast that tore a gaping hole the size of a child's head in the Night Lord's chest. His host fell apon another, drowing him in a tide of bullets and blades. The largest of the remaining mutants, a hulking brute that stood tall enough to look the Apostle in the eye, one arm twice as large as the other and baring dagger-like claws, his face a featureless mass of flesh covered by a blindfold, held up the marine's severed head in triumph as his axe dripped with his victim's blood.
"BLOOD FOR THE BLOOD GOD! SKULLS FOR THE SKULL THRONE!" They all cried out. A fresh wave of pride swept through the sorcerer, a sure sign of Slaanesh's favor. With a wave of his staff, he bid seven of his followers continue the hunt, a task they set to gladly, while the rest remained behind.
"Gather the corpses, my children. Bring them to the bridge. The ritual should be witnessed by the Apostle." Of course, Amphion was not content with a simple slaughter, much as it pleased Khorne. No, he meant to honor all of the Dark Gods today. Nurgle would be pleased with his offering of the dead, a boon for the new legion of the Black Hands. He looked with pride at the newely-painted armor, a physicial expression of his devotion to his master and the gods.
"Soon we shall add Grandfather Nurgle's blessing to our legion, my children. Glory to the Dark Gods! We shall let the galaxy BURN!"