How is a talking radius realistic?
you should jsut be able to talk with you squad unless your the leader. the leader of squads should be able to talk to the people who are in charge of even more people so you can get a coordinated assault/defence going on without having so much chatter its annoying. Then you should also be able to get a skill to intercept enemy's chatter to listen in on their plans and do your best to counter their strategy. Just one idea for how mics could work