Personally,it's not the pitch of voice that's irritating. It's the non-stop chatter from one,or between a couple of them,not realizing that there are other players in the area.We don't need updates every 5 seconds about what you doing.Then, Right in the middle of a fight someone wants to know how to drop bombs,or something that should be learned in the TA or offline. Learn tactics off line,and learn radio etiquette.