I get a loud static noise when I hit a tank. If I miss I don't hear it. Man it's loud, like dropping a needle on a record player, I know I'm old. I have heard it before on some of your other mods but just went back to an older mod. 1.4.0.2 3 or 5 was the last one that it wasn't there.
If I uninstall its fine, I have now installed other modpacks and it's fine.
I'm using sound drivers from MB z270x-k5 realtek audio driver [6.0.1.8210]