Here's my perspective. I did my entire enlistment with the Marines. I was only maybe 3 or 4 out of a class of about 50 during Corps School that actually wanted to go greenside. Its sad to say but once you get to the fleet, most of the greenside Corpsman you'll see are ones that did not want to go with the Marines and are only just there "doing their time" and that leads to alot of bad attitudes and bad reputations for the rest of us.
In my experience, there are 2 types of greenside Corpsman
The lazy asses that try to get out of everything claiming "thats not my job"
And then there are the motivated ones. The ones that want to be there with them and it shows in their attitude and in the way they train. Since you seem like the latter, I dont think you'll have problems. Just go in there and try to out Marine the Marines and they will respect you for it. Dont EVER pull that "I'm a corpsman, I dont do that crap" BS. I HATED that $hit and when I was senior line, I made sure my junior Corpsman NEVER pulled that crap.
As far as being non appreciated or "picked on" by Marines. Its more prevalent with the POGs or support commands because the Corpsman at those commands dont do too much operationally other than set up the BAS and CASEVAC. Not too much integrated training with the Marines like there is in a line company.
Do everything you can to try and get with a grunt unit. And once you're there, do everything you can to get out to a line company. The last thing you want is to get to a grunt unit and sit at the BAS.
The camaraderie that everyone speaks of between a Marine and a Corpsman is usually within grunt units in my experience because you are part of the platoon. The lines between Marine and Corpsman get really blurred at the platoon level as long as you have a cool Platoon Sgt. I was basically a rifleman until someone got hurt. I cleared rooms with my guys in Iraq, knew more about the radio than our platoon R.O. and even taught M.O.U.T to the Iraqi National Guard. I was also a crossdresser for those of you who know what that is.
It's all about what you put in to it. You expect them to learn all the medical classes you teach them so its only fair you learn everything you can during all the classes given on Marine Corps related material.
There really is NO experience like it. You will never be closer to a bunch of guys as you will with your platoon. You get real protective of your guys and they you. I've been out since 08 and I still get calls from guys regarding medical issues lol.
Just strive to be the BEST Corpsman you can be and you should be alright. Feel free to ask me any questions you have.
Oh, and if you deploy on a MEU(you'll be on a ship) DO NOT stand in the Navy line for chow. Stay with your Marines. The lines may be longer but dont separate yourself from your guys.
As far as SWCC goes, If you like serving with the Marines, why not Recon?
If you like to read, try Force Recon Diary 1969 by Major Bruce Norton. He was a Recon Corpsman and eventually went on to become a Major in the Marine Corps.