I will only speak in my DS's case, so for what its worth:
We received multiple letters from the Dean of Admissions, Dr. S.B. Latta regarding what was required and outstanding in my son's case, I recall reading three of these over six months. As well, the computer system and very kind Admissions team kept him/us up-to-date.
From what I have read, the 3Q is not "officially" used at the USNA, but it seems, for lack of a better term, adopted by folks like us who are awaiting a chance for appointment.
Officially, I would use #10 found at the bottom of this page:
http://www.usna.edu/Admissions/steps.htm
While our BGO was somewhat helpful, she did not give us any indicators regarding the admissions status, they are limited once the ball is rolling. Grevar above has a pretty good formula, but I wouldn't over simplify the "Whole Person Score" by any means. There's a lot to that category.
DODMERB was a huge hurdle for our DS. These letters do not come from the USNA. The CFA status is noted on the computer system after a few days after submission.
PM me if you want more specifics, although, it seems varied paths lead to the gates onto the yard. Best of luck!