As a 100% disabled veteran and Purple Heart recipient I have been using full facilities of military basses now and for several years that include staying at their base RV parks and on base Inns such as the AF Inns. I am not retired military but a former Army Vietnam vet and Army Guard medevac pilot. I have held a military DAV ID card for many years.
I can also fly space A on military aircraft anywhere within CONUS and U.S. territories. Just returned from a great fishing and camping trip staying at Air Force base RV park and California state parks.
Recent changes allow vets with any amount of a VA disability rating to use on base MWR recreation facilities and PX plus commissary privileges just like me to include full work out gym facilities.
I save a great deal of money using all base facilities and the Air Force has always been very good to this Army guy starting in Vietnam with an AF C-141 AirEvac flight to Japan and then flying space A all over the USA many years ago plus a back seat ride in a T-33 jet trainer as a CAP cadet in 64. Cheers to the brave