I had Deacon as my companion while doing 'The Nuclear Option' quest and on completion (after exiting the Vertibird), he says something about seeing me back at Railroad HQ (at least, I think that's what he said). However, he isn't at Railroad HQ and is no longer my companion. I can't find him anywhere! I've been to every one of settlements and can't locate him.
Unfortunately, he's carrying a lot of decent weapons and I haven't reached max affinity with him yet so was hoping to carry on with him.
Any ideas how I can get him back?
Platform: Xbox One