Well, at this point, its not really a scholarship, as he's not joining as a medical student. I'm not even sure how this would work, as FAP is for those persuing civilian residency, receiving a stipend and yearly check (ostensibly for loan repayment) from the military, and thus incur a military service obligation. With HPSP, the service picks up the tab for medical school, and in exchange, the recipient trains in the military, and pays off the time-debt owed for the monetary investment by the service.
This poster seems to be looking for a way to access military residencies, without first incuring an obligation through training or other financial assistance. I do not believe that there is a program that details the mechanisms for this, but I am sure some folk have entered in this fashion. However, this raises a huge red flag of why does this person seek training from the military when he/she does not already owe the military time? A couple of times a year (usually in the peri-match period) a few members come on this forum asking how they can enter the military GME system, and it is usually due to the fact that they are marginal (at best) students that failed to match (maybe again) in the civilian sector, and are desperate for training. Now, I do not know the OP, but it is based on this experience that I throw the shenanigans flag.