Gunsmith. It makes sense. It'll also be all kinds of useful here, in a place where they seem to need basically everyone's skills.

That apparent memory lapse might be a problem, though. John doesn't say anything about it, but he'll remember it. There's something about it that puts him in mind of Cameron, and not in a good way.

In a sympathetic way, though.

"That's good. I'd bet the people here could use that. Weapons seem like they're in short supply. You can build as well as fix, right?"