Great video, I read a lot about the Chauchat in the book Machine Guns 1916 by Hatcher-Wilhelm-Malone.
That video complements the book.
The Chauchat wasn't much, but we didn't have any thing better, heck at the time we bearly had enough rifles for our UE troops.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071