NROTC-Marine Option.

Well NROTC does not require specific high school grades to get into. You first need to be accepted to the school that hosts, the Rotc program. I would say go to college, enroll in the program, and then as soon as you graduate youll be commissioned. now if money is a problem then you might wanna enlist first so afterward they can pay for it. But in a nut shell high school grades really only help in getting full ride scholarships from ROTC, otherwise, they do not matter to get in. Just speak to the detachment officer and he will set you up once you get into the host college. Good luck