I have no experience with replacing sounds, the only thing I know is that sounds for a weapon are saved in something called "SoundSet"
If you find out how to create such a soundset, I can show you how to do the rest, but everything before that I have no idea how to do

How hard is it to replace the sound a gun makes? I want to make a gag mod (or have one made) for a freind of mine but i dont know where to start

Then do, I'm always checking the comments

I got a question to ask