The lone knight heard the sharp repeat of bolter fire, he knew instantly a fight had begun outside the garage. Having locked the front doors and garage door he moved to the door at the rear of the repair bay. Kicking it sending it flying clear of the doorway. He broke into a sprint, he did not pause when he saw the strange red creatures. He saw them attacking his brothers and knew that they were a foe, so they would die. Letting off rounds from his bolt pistol as charged into the massive bringing chain sword biting into from the side as another fell under the fire from his pistol. 

"We are the Emperor's angels of death! And you will die scum!" He cried, while he might have been younger warriors present, he was one of the most devout and unflinching. He had survived trials on Caliban, the trials to become a space marine, fought with one of the most tactically renown Primarchs. Has was the only son of the Lion currently taking to the field against the enemies of the Emperor. His fury had to be enough to stand for his entire legion and no traitor or their pawns would overcome his wrath. His brothers, his leaders, and his mission were failed, to him only thing left was redemption in death and joining his brothers their.