I already have the microphone on my headset set as the default communications device. When I talk into it, it says it's working too, and picking up my sound.

I have tried two other microphones, yes. One was on another dual jack headset, the second was on a bluetooth headset. They both work, but again just not for DayZ. My headset doesn't run any specific driver/software. I've tried every solution available online, and I don't see anyone else with this issue, which is why I am so confused.