My DD and I met with both AFROTC and AROTC last week at two different universities. We were told that, even if the SAT/ACT is not "required", the applicant is still given points if a test is taken. So, let's say it is worth 10% of the score, the cadet without a test is only able to to achieve a 90 out of 100. My takeaway was try your best to submit a standardized test score to be more competitive.