Probably not much. The Navy has centuries of experience in operating vessels in hostile environments, and commanding men to work and live under discipline in close quarters and for long periods of time. Army?? no. Air Force?? no.
A nuclear sub is just a apace ship operating in a water environment.
In fact, there is actually a sci-fi series based directly on that idea.
And why did they map the moon? What conceivable purpose die that serve? And why are the Images still classified - only the Low-Res and a few on the Middle-Res images are available, all the Hi-Res images are not?
What did they see on those images which we are not allowed see?
And why did Clementine ‘disappear’ after being declared destroyed only to reappear, without comment, years later in a totally different non-lunar orbit?
It is also true that the Navy budget at the time did not allow for the expense and some other more earthy military objectives had to be scraped or dropped to fund the mission. Why? What was so important that they had to map the moon in detail at that time, despite other more overtly pressing concerns?
I'd viscerally like to disagree but cannot, it is only logical to carry the Navy experience and traditions to the unlimited ocean of space. There will be modifications as required by new experiences BUT it would be very foolish to ignore institutional knowledge already gained.
Still, even with this admission above, GO ARMY, BEAT NAVY! 12/09/17 1500 hours, Lincoln Financial Field, Philadelphia, PA.
Or Arthur C. Clarke’s craft sailing along in the heavy dust layer that the moon turned out not to have. “A Fall of Moondust”