When the "Army" dropped support for the National Matches it was a dictated move by Congress through the creation of the CMP Corporation and the redefining of support relationships. That was in 1996. Part of the peace dividend and Congress was cutting funding for the Army, so to keep the CMP going, and out of the Army budget, the CMP Corporation was chartered.
You really don't know your history. Prior to 1968 the Army ran the National Matches at Camp Perry and was a positive force for marksmanship. Go look at the Oct 1967 American Rifleman for the excuses the Army used to drop the National Matches. The conversion of the DCM to the CMP was actually of importance to Civilians, as we got access to Garands, but basically at the end, the DCM was doing as little as possible. Under the DCM era I got my once in a lifetime Garand. That was about all they were doing at the end.
Neither the AMU nor the USMC rifle team provide any supplies nor run the matches where I shoot. We don't get loaner rifles nor do we get ammunition from the Army. Clubs could get that out of the DCM, prior to the 1980's. I would like you to tell me just how much financial, and logistical support these organizations provide to the National Rifle Association, the CMP, and to civilian shooters and civilian clubs. . I would be interested in that number.
What I see, is that these organizations are irrelevant outside of Camp Lejeune and Fort Benning but, but they are still at the top dictating how we shoot, what we shoot, and making rule changes to fit their ideologies. Fine, let them fill out the paperwork, order the targets, build the frames, run the matches, send out the results, and do the logistics running the matches at our ranges . They won't. Just how many gun clubs have access to military ranges? It is about time that our spineless NRA and CMP leadership realized, that the civilian shooter base likes the game as it is, and it is the civilian base that is running these matches at the local level, not the AMU or USMC rifle team.