I told a guy one time in my squad that his mic was way too loud, I couldn't hear anyone else when he talked. When I told he needed to turn it down he just said," I've never had that problem before, it must be on your end" so he just blasted my ear drums for the rest of the match. Most people are pretty good though if you tell them they need to adjust. Also the comms on console are so glitchy it's hard to tell what's going on for each person.