Walther P38 and Panzerbüchse 39

[WBA]

It looks like this section is dead, but maybe any of developers can help me...
I saw references in modding files of infantry weapons such as Walther P38 pistol and Panzerbüchse 39 at rifle (there are more, but I tried only these two), then I tried to give these weapons to any of the infantry squad members (I know how to do it and had successfully changed weapons that are already USED in the game), but after creating mod that didn't gave any errors soldiers in the game just was with empty hands, so I thought while there are references to these weapons in game files Eugen didn't actually created any 3D models for them until I found out about Modding Assets and, in fact, both of these weapons have 3D models, so my question is - why I can't make them show up in the game? Do they need some special animation or there needs to be made some missing reference in any of the modding files?

I would appreciate any help!