Since you are trying your BEST to make this about anybody but McCain...(struggling with comprehension).
"You" as in McCain, got that, or do you need more "spell it outs".
Uhhh, well, if you don't really know what you are doing, YES, class rank is an indication that you didn't "get it" or "couldn't get it".
And once again...yes...the Sub force was/is considered the most Elite for the simple reason that it is a First Strike/ Last defense of the Strategic Command. It was THE number one deterrent in the Cold War. As most War stategists know, ICBMs, Bombers could be neutralize...NEVER the Submarine Force.
http://www.highbeam.com/doc/1P3-1413181711.html
Don't take my word for it.
http://www.globalsecurity.org/military/lib...rt/1992/RRL.htm
I am pleased that you were paying attention in class a few weeks ago.
Here's and excellent source for you to read up on America's "Silent Killers".
http://www.alibris.co.uk/booksearch?qwork=...s*listing*title
A superb read.