Okay I finally found the freespace manual online and I read the section on ranks and apparently your ranking gives you greater control over ships in the comns menu which I assume is just FREDed in and it also unlocks new ships for ship selection which could probably be done with the is_player_rank SEXP or whatever it is. However what if you wanted to do this in a multiplayer mission? How would having some players being able to select certain ships based on their rank work? Especially if the host is choosing? Would it at all be possible? I can see it adding some cool elements to the game play considering that I don't have D variants of each ship and some are just really big and really sweet.