This has a tutorial only for the melee weapons but not the guns(Even though a method for guns is mentioned in it). Also, it says that you can convert melee and assualt weapons(At first I thought it meant rifles but I read comments and it seems like it's talking about any type of gun). Here's the relevant text:
Melee Weapons DLC Folder Same as before, but this one is provided by @yeahhmonkey and should work better. Basic
Assault Weapons DLC Folder Here you can put only Assault (gunfire) weapons. Again provided by @yeahhmonkey. Basic
Anyways, even the tutorial for converting replacement melee weapons to addon weapons has a dead link to something that is stated as important to make things work.
Are there any updated articles/tutorials regarding this? And if not does anyone know how to do this stuff?