Herold Ortega rested his shotgun on his knee, taking a small breather while his companions worked on their various tasks that matched their abilities. He had remained relatively quiet since the Chaos Space Marines they had found behind the bunker. He simply watched over Vala as she worked on the bomb. 

With his perpetual frown and hard set jaw, he seemed displeased more often than not, though that wasn't necessarily true. Often he simply had a righteous anger and a passion for adhering to the law of the Imperium. But at the moment, he was a bit displeased. There was nothing to shoot, and he felt his abilities were inadequate for the intricacies at hand. 

The Adeptus Arbites was intelligent when it came to memorization reciting the innumerable laws of the Imperium, along with forensics and legal jurisdiction. He had found no such need for any of these skills since coming to this world, though he wouldn't mind it as long as there were Xenos or heretics to slay. 

But so far, he was a glorified bodyguard. He wouldn't complain. But at the moment, he wasn't entirely content with it, Emperor help him.