This has been an issue for me since the Dayz Mod. When you launch dayz without a microphone connected... then connect your mic, it will not work until you restart the game.. also, say you have a problem with your microphone like i do, when it randomly connects then reconnects... you must restart the game for it to work again. This is very inconvenient, and the game, like most other games, should detect when a microphone is connected, and be able to utilize it with out having to be restarted.