I submitted my application around November. I heard back in late December/ I think. I was days away from getting on a bus to go to Marine Corps boot camp.
I can't send PMs yet but what would you like to know?
I can tell you the general process of getting into submarines is this:
-Be an Engineer. I think a deckie could easily do it if they had a good physics understanding, good calculus skills, and some prep but coming at the whole thing...