I tried that "export to single mission business, O'Neil, and it worked nicely; thank you. Before, I had been grafting the entire .../Users/<user>/missions/<mission> directory into the single-missions directory. It was working okay, but your way is easier--except that OFP holds the .pbo file open after you finish the mission, so if I playtest it from the Single Missions menu, I can't make a modification and re-save it. (It looks like I can, but it fails silently.) I have to get out of OFP, delete the old .pbo, get back into OFP and the mission editor, load the mission, and re-export it.
I'm pretty sure "Show always," "Show as Cadet," and "Never show" aren't the problem. I have "Show as Cadet" on for those waypoints. I'm talking about the waypoints showing on the map, not in the first- (or third-) person view. I want them in first-person, and I don't want to see them on the map during the mission.
Thanks again...
Barak