Regenerator’s Appearance / Lack of Fighting Skill

“Same thing, smaller scale.” He made no attempt at a smile. The two men were close to the same age, the same height, but even slumped Josh’s shoulders were broader. Like so many people these days, his hair had gone gray years before it should have, and a few strands of pure white highlighted the mop. In white makeup, he could’ve passed for a somber Greek statue. In the lab coat, he was almost spectral. They walked back to the hallway. “Heard you’re heading out later today.”
“Around eleven.”
“Who’s going with?”
“Cerberus and Barry. I just came over to tell Connolly you’ll be on solar all afternoon.”
The doctor nodded and leaned against a set of file cabinets. A beat passed. Then another.
“You should come out sometime.”
Josh shook his head. “No. Thanks for the offer, but no.”
“I think it’d do you some good.”
“How?”
“You haven’t gone out once. Hell, have you even been near an ex since …?” St. George paused again before giving an awkward nod at the pocketed hand.
“Not really, no.”
“We could use you out there. You’ve got experience.”
“I have experience in field hospitals,” he said with a shake of his head. “I was never much of a fighter. Just good at not getting hurt.”

Excerpt From Ex-Heroes, pg 37-39
Peter Clines
https://books.apple.com/us/book/ex-heroes/id585738407