I believe this is the current https://support.campendium.com/hc/en-us/articles/5380188691604-U-S-Military-Campgrounds-Info-Eligibility-#:~:text=Military%20bases%20often%20have%20their%20own%20specific%20rules,Guard%20or%20Reservist%20a%20100%25%20service-connected%20disabled%20veteran.
It is getting very difficult to use a military campground for short time stays. Many are using it for winter loactions and long term stay even though regulations say you must limit stay to 14 days. Some locales just require some visitors to just move to a different site.