Joining the navy with hopes of transitioning to the IC is dumb, unless you've already been rejected by the big agencies.....even then, still kinda dumb. Military analysts are generally not held in high regard within the beltway and are rarely hired, especially when competing against ivy league grads who are native speakers of a target language. Want more a more techie intel job? Then you're competing with engineers with advanced degrees from MIT, JHU et cetera. The IC does not have trouble finding extremely well qualified applicants.
Hell, it is RARE for an intel O to be an actual analyst. You will largely be regurgitating short bits of information produced by a much larger entity, or helping with plans. Typically if a retiring intel O stays in the field, he/she remains with their branch of service, usually as a GS-12 or 13. Vast majority of retiring intel Os find work in other industries. Flyers can chime in here, but in my experience, it is almost unheard of a retiring pilot to join the IC in some capacity that isn't directly tied to aviation. Again, 33 year old P-3/f-18 pilot who can fly the jet with related experience/knowledge, versus a 27 year old masters/PHD grad from the ivy league? You can see why it doesn't often work out.