God bless your father and your son for their service.
My son was excepted into OCS, but they delayed his entry after graduation, so he hit a local recruiter and went to Parris Island a week later. (He graduated from the business school at Miami) He’s been in 51/2 years and has been to Afghanistan, Iraq and is back in Afghanistan right now. He’s had chances to go to Quantico but has no interest. He’s done Recon, Force Recon and is now in Marsoc (Marine Special Ops). I was being facetious about the post.
I grew up in an officer's household. The Navy I observed prior to 1970 was one that I considered as a possible career path. The political correctness that crept into the military after that time looked less appealing. While I haven't "served" in uniform, I spend most of my time crafting specialized systems for the military. Sometimes I have to deliver them in places that are anything but safe. Nothing anywhere near as dangerous as the specialty your son has chosen. God bless him and keep him safe. I looked forward to that sat phone calls from my son when he was deployed.