If we are in subject of French AT weapons is possible to add to Vichy France and then Free France this gun build behind nose of German armistice commission by private contractors 36 build 10 installed on trucks. Vichy French Armée d'Afrique never used them in action were keep in secret storage. When discovered given to Free French units in Tunesia and used by them.
37 mm de Marine Anti-Char
here is subject where this gun was mentioned on SPWW2 forum
https://forum.shrapnelgames.com/showthread.php?t=52488
And here links with story and photo of this gun
https://live.warthunder.com/post/420891/en/
https://ptdockyard.com/15mm-armor/
Probably is represented by unit 481 in French and Vichy French OOB 37mm SA37 ATG with photo of polish cavalry soldiers in Adrian Helmets with Bofors gun.