Please take a moment and update your account profile. If you have an updated account profile with basic information on why you are on Air Warriors it will help other people respond to your posts. How do you update your profile you ask?
What exactly would the difference be in pursuing an aviation career with navy or the marines, is one harder than the other? And, if u do go through the rotc, is it nrotc for marines and navy, all as one?
Bretts...seriously, use the search. Both of your posts are asking a commonly asked question. I know you're at that tender age, finding "Post" buttons in places where they weren't before, but a lot of this stuff is already here to read.