Allow me to be blunt:
Recruiters are flesh-peddlers. Their job is to ship warm bodies to the RTC. As soon as a future squid raises their right hand and signs, the recruiter's job is over.
If it's not written down in the enlistment contract, the recruiter's assurances are tissues of lies and worth even less.
(One fine evening, I was the OOD in port. I was standing on the quarterdeck, in my summer whites, long glass held behind my back, as a very large and very drunk sailor told me in no uncertain terms how his recruiter had lied to him and that the Navy was full of shit. I figured that if push came to shove, I could get in one or two good swings before he tore my head off. But I digress.)
If your son's goal is to be an operator of some flavor, the Navy is not the place to go. If he bilges out of BUDS (and something like 80% do), he stands a good chance of being sent to the Fleet as an unrated seaman or fireman. The difference there is whether he's using a chipping hammer topside or in the bilges. I am not making this shit up. Then his path would be to strike for hospital corpsman, which may be a very slim reed to grasp from a ship's crew. I'd guess the odds of doing that to be one in a very large number.
If he wants to be an operator, as much as it pains me to write these words, he should go into a branch where carrying a gun is a major career path. The Army has the infantry, the Rangers, Special Forces, paratroopers, and maybe other things where getting shot at is part of the job description.. If he wants to make a career of it, he can stay in those fields or even go warrant helo driver. The Marines have similar pathways, but since the Crotch is smaller, they can be more difficult to get into.
This is a standard Navy scraper/chipping hammer:
Attachment 56685
If he goes into the Navy, the chances are that he will become intimately familiar with using one.