Last I checked, the following public universities will convert a non-resident student's status to in-state for tuition purposes if that non-resident has a Type 7 AFROTC scholarship:
- Texas A&M
- U. Minnesota
- U. Kansas
- Mississippi State
- U. Georgia*
* updated, thanks to BigThunk42
Don't know whether this info is current for the 2021-22 school year -- as always, you should confirm with the school (in this case, the university bursar / financial aid folks).
Just to be clear, here's how the process works: it's not AFROTC that does this conversion; it's the UNIVERSITY itself. They will re-label your non-resident DS or DD a resident of [Texas][Minnesota][Kansas][Mississippi] for tuition purposes and then charge you the in-state tuition rate. Then AFROTC will apply your Type 7 to pay that in-state rate, up to $18,000 per year, for all four years.
Again, AFROTC doesn't "convert" anything; it's the university that converts your residency status to in-state.
Good luck, and bundle up (if you go to Minnesota) or boot up (if you go to TAMU)!