Well, I am an INTP and former sheltered suburban only child that rolled out of bed at 7 am, in his own big room w/bathroom, and was late to Jazz Band by 15 minutes every single day, that became an enlisted Marine.
It would be a little different for an officer in the Army, but Marine boot camp was a huge culture shock, for me. Marching around all day long and standing at attention, eating food in the chow hall with my back straight and feet together at the heels. For the first few days, I was clenching my teeth so tightly that my mouth started to hurt and I had to consciously stop doing that. Getting woken up at 4-5 am and getting yelled at by a drill instructor to "get out of the rack, get online." That means we line up on a white line in front of our bunk beds, then the drill instructor tells us to put a piece of clothing on and counts down from 5, and if someone doesn't do it in time, we all start over. That's just the beginning really. 3 months lasts a long friggen time, and it was extremely hard at first, but by the time I was done with that, I had become used to it.
The fleet is different. I was a motor t operator, which means driving vehicles, so it was almost like a normal job, except for PT, uniform inspections, not knowing your schedule until 4:30 the day before, including weekends, being on-call 24/7 (liberty is a privilege, not a right), etc. Working random hours, anything from 3 am until 1 am, or whatever. You are basically just bossed around and told what to do, how to do it and when to do it. Then when you become an NCO, you're expected to do that to the junior Marines.
I also was known for not saying rank, which annoyed some of the NCOs, but I managed to become liked very well by the sergeants at my unit and got high pros and cons. After being there for a few months, I started getting along really well with the people there and had a ton of fun partying in Socal, and really enjoyed my night life, even though I hated work.
This all changed when I got stationed in S. Korea though, like a 180 I didn't get along with hardly anyone and got horrible pros and cons. This is when I became an NCO, and I made jokes about my authority, which ended up being a mistake because, even though my underlings liked me for that, I got in trouble a lot for not getting my Marines to do anything, and I couldn't get them to do anything even if I tried, at that point, because they didn't take me seriously anymore. I guess that was typical INTP behavior to want everyone to be equals and just work together, but most people in the military won't respond to that.
There was an ENTP on here that was a former Marine, and he said he didn't like it all that much. I'd have to guess that NTPs (especially INTP) make up a tiny % of the Marine population. I was counting my days starting at day 1 of bootcamp.
If you want to watch the most accurate portrayal I've seen of a modern Marine sniper unit (or infantry) then that would be Jarheads. Non-infantry is a bit different and more tame. I remember reading reviews and a lot of non-infantry didn't like the movie, but all of the infantry guys that posted reviews said it was accurate. I worked at the School of Infantry, so I worked with a lot of different MOSs and talked to them about what their units and jobs were like.
any personal stories are fine also 
