NROTC vs. OCS
I will try to clarify this for you. You put in your service selection packet, early senior year and find out later where you go when you graduate. As for going marine aviation through ROTC you have to get accepted as a marine option midn, which is harder than just becoming a regular navy option. Plus you have to decide early on whether to go marines or not, since your 1st class cruise (between junior and senior year) is spent at "bull dog" or a marine OCS for MIDN. So the benifits of going ROTC as opposed to navy OCS are:
1. The education is much better (and possibly free).
2. The assets you have there to help you make your decision are so much better than any recruiting station or reserve center.
- each unit is required to have atleast one person for each field of the
navy, ie: subs, aviation, surface, marines, and they are always willing to help you.
3. You actually get to spend time with the fleet at sea during your summers, helping you decide what you want to do. you can read more into that on the NROTC website.
4. NROTC midn are being trained as "unrestricted line" officers. These officers are the ONLY ones who are allowed to have command at sea. Also the unrestricted line officers are the ones who drive the ships, are the Nukes, and PILOTS. Coming out of OCS, you can go either way. But Naval academy and ROTC MIDN's are the ones who get most of the unrestricted line officer positions, therefor you are better going for NROTC. unless of course you are just bent on paying for college and then possibly a desk job in the navy.
hope that helped, good luck with whatever you decide to do.