This DEAC accredited school is now accepting tuition assistance for active duty military people. Sonoran Desert Institute Now Accepting Tuition Assistance for Military Students This school gets very little time on this site but they have a few different programs including the oldest home-study gunsmithing program in the US. Sonoran Desert Institute, Accredited Gunsmithing College
DEAC accreditation gets a school into the DANTES catalog. Being in the DANTES catalog makes a school's active duty students eligible for using TA. This applies to degree-granting schools. I'm not sure if it extends to non-degree courses.