How do I make it so my audio that plays at the same time doesn't layer?

I have an issue with my game where a lot of my troops that you place down, upon firing, the audio all plays at the same time and stacks - making it crazily loud. I want to be able to keep it so they can shoot all at the same time, but alot of the audio (not just the shooting audio) keeps layering and getting too loud.

Assign tags when playing these sounds. And check if the tag is already playing.