@BlemBlaster You have all the files needed to build the mod here:
https://github.com/Fraaagaaa/Animated-Camos
There is no code to make it work, I just swapped the original materials that the models of the weapons use for an animated one. you can find them here https://github.com/Fraaagaaa/Animated-Camos/tree/main/raw/materials
And the gdt to build them here: https://github.com/Fraaagaaa/Animated-Camos/blob/main/raw/texure_assets/camos.gdt
The process is really hard to explain specially since english is not my first language but if I was able to figure it out without this you should be able to do so too looking at the files.