No, it's not that, the latest version of 0.9 is bugged when it comes to addons, the names and sounds are not being registered in the right place, I'll make a fix for this soon.
The profiles folder contains music shooting profiles, in other words when and where to shoot during music, this is not mandatory for the gun to function.
I'm developing a simple tool for that, it's not really possible to create that on your own.