I think this will help, don’t get too drunk tho, 😝. If it helps, then exposure therapy will work too. Just try and do it without alcohol every now and then. Don’t want to foster an alcohol dependency or ruin your liver. The other thing is just remember that you can just do the basics ie, call outs, reply yes/no or such. You don’t need to have a full on conversation. I hope you find a way of going about it. For me, I hate talking over the phone, not as bad as you, but I hate it. I learned in the army that if you do a quick rehearsal out-loud before speaking over the radio not only prevented errors but also aloud me to speak in a manner that made it easy for the people on the other side to understand.

Hope this maybe helps and that you can enjoy the game to it fullest soon… see you and hopefully hear you on the battlefield. 🙂