I have lived a few years in France, but unfortunately, my French is too weak (without red wine) to make professional translations. My understanding is that this is a memorial from the First World War and that the soldiers are paying their respects to the people and soldiers who did not make it. They have not forgotten.
If you ever travel around Europe, I strongly suggest that you take some time to visit some of the memorials or cemeteries that are around, including the German ones.
The classic FAMAS rifle is still around, but the new Heckler & Koch HK416F is showing up more and more and supplies keep on growing since the start in 2017.