Have you researched the ROTCNomination websites, any links to JROTC or how it gets one a Scholarship if Accepted to their College of choice, what majors they are looking at as the most competitive, when they want the App's in by, etc.? Look at that info first, ask some specific questions here, the experienced adults won't mind helping if you do a little work, not just a blanket 'tell me all I need to know' type thing. Assume everything is Very Competitive. Individual Colleges that have Units have websites on the College Websites which are also very helpful. Happy hunting.