If you are trying to overwrite an existing entity's sound, you should not use data:extend. Instead, edit the data table directly.

data.raw["gun"]["submachine-gun"].attack_parameters.sound = {
{
filename = "__my-mod__/sound/submachine-gunshot-1.ogg",
volume = 0.6,
},
{
filename = "__my-mod ...

Hello everyone

I'm trying to modify a already existing mod. I want to add differntly pitched weapon sounds to each weapon. This should make the weapons sound less monoton and in the case uf fully automatic ones, less ear piercing. So what i already pitched the weapons sounds up and down a few tones ...