Everything I researched said that in-college NROTC cadets must talk to their PNS regarding in-college opportunities. It also stated that there is a scholarship available, that your friend can ask about:
Tweeddale Scholarship
Each unit Professor of Naval Science (PNS) is assigned two Tweeddale Scholarships each year
Program focused on students majoring in specific technical fields
Criteria for selection:
Student must have completed at least one but no more than four academic terms w/ a cumulative Grade Point Average (GPA) which places student above peer mean or 3.0, whichever is higher
Transcript must reflect grade of "C" or better in all courses attempted
Student must have completed one academic term of college level math or science
Will be required to complete Naval Science Course 101 as soon as possible
Students interviewed by PNS and must comply w/ standards regarding leadership potential and military/physical fitness
Submit a revised degree plan for review by PNS; degree plan must be verified by student's faculty advisor and demonstrate that student will by able to complete all naval science requirements and still graduate on time with his/her assigned class year group.
Major in: Engineering, Mathematics, Computer Science, Chemistry, Physics
Strong math/science background in high school and "B" or better in calculus, if completed