The Arbites had done his best to remain within close proximity to the Chimera. He had slain a dozen heretics with his amped up power maul, but soon he found them flanking him. He turned and swiped across the would-be flankers, decapitating them with controlled electronic explosions. He felt hands grab at his back, but the Arbites was too thickly muscled for the few that were close enough to attack. 

He moved back toward the Chimera, and reformed as the head of the group moving between the Chimera to the Rhino. His visor spattered with blood, he lifted it to see where he was swinging with better accuracy, hacking over and over in front of him to detonate whatever limb or fodder that was unlucky enough to get in his way. 

"For the Emperor!" He growled with a fury. The Law of the Imperium, nor its patron, would be denied. 

As his companions filed past him, he held his ground and moved them along, waving his shield in order to get them moving. "Move! Go!" He ordered as they filed past. The Arbites lowered himself to better hold his ground, his shield in front as the tide pressed inward. "Hurry! Move!" Once the others were inside, he backstepped and struck three heretics running at them with abandon. Herold's last blow ripped apart their torsos. He entered the Rhino and slammed the door shut.