My understanding (at least for Nursing) is that HSSP Nursing majors must compete for SFT as non-tech majors, but with a desirable AFSC (additional points?). While they may not need a 3.4+ CGPA (such as many non-tech applicants) to compete they will need at least a 3.0 - 3.1+ CGPA similar to the engineers (tech majors) competing.CH24, NO they are not guaranteed unless they have a specialty scholarship...i.e CSO/ABM...not sure about nursing, but think they are too.
Caveat it isn't guaranteed, but the board will give them preference. I.E. if they are carrying at least the AFROTC min (2.5), PFT and commander's rec. than they will be fine.
In addition, Nursing majors are not guaranteed a Nursing AFSC. More competition:
"Premed, Nursing and Other Medical-Related Major If you are applying for one of these majors, you will compete for a nontechnical scholarship. Be advised that if you receive and activate a scholarship in one of these majors, you are not guaranteed that specialty upon commissioning. After you complete your freshman, sophomore or junior year, you must compete on the prehealth, nursing or biomedical science corps designation boards to receive the Air Force designator for that specialty. The designator guarantees you will enter that specialty upon commissioning. If you are not selected on one of these boards, you will retain your scholarship, but you will enter the Air Force as a line officer upon being commissioned and be accessed into a specialty based on the needs of the Air Force."
http://afrotc.com/scholarships/high-school/schools-and-majors/