[rhmc24]

I spot 'wrong kind of gun' often like folks above. I'm sure anyone with specialist info or experience sees similar faux issues in his own field of knowledge. In my time of simulating work for a living in an airline, I'm sensitized to aviation/aircraft errors like one kind of airplane taking off and another type landing, use of airplane type that hadn't been produced for the time of the story, impossible fix & fly again, etc., --- aviation counterpart of 'wrong gun'. No doubt LEOs, lawyers, doctors, computer nerds, etc., would tell their similar stories.