Changing Upgraded weapon sounds

[Strogglet]

So, some weapons, when upgraded, have their firing sound changed. Like the MP7, it changes at Level 3 and Level 4. The level 4 sound is extremely annoying.

Is there any way, hopefully a script inside a .xtbl, that can change the sounds of a weapon when upgraded and such? The weapon_upgrades doesn't have it, sadly.

 

[Yue Fei]

I know this question dates quite a bit, though I was wondering the same thing. Is there any way to mod a weapon sound file so it uses previous upgrade sound instead?