Alas, I am just the lowly mechanic. I have made a few changes on some of the CMP vehicles (ie: they had most of the wheel nuts all painted red when it should have been the nuts to hold the two rim halves together) and some of the signage still has errors on it. I have noticed a few errors on some of the small arms in the past, but since working there, have not had time to visit the weapons room. With over 50 vehicles in the collection, there is a lot of attention required.
This was a good job for me. I owned my first military vehicle when I was 17, and have owned over a hundred of them since then. The progression to firearms collecting was just a natural addition to the vehicles, just as radios or uniforms could have been.