I downloaded some bo1 weapons. I open the file and I have this:
https://gyazo.com/807536cbc931d0b8daab521aeca4fb05
I know where the mod.csv goes but I cant seem to figure out where all the other folders go. If someone can help that would be great!

EDIT: Alright, so I downloaded bo1 weapons and they work on my map. However, they dont have upgraded versions of the gun. I was wondering if there is any tutorial out there on how to make a pap weapon.
https://gyazo.com/baff87165c3e08aadc70e706999a5c4e
https://gyazo.com/f0ef541c6f9535f8995068619debefe6
^ those are the files
hope someone can help