There’s a problem with Battlefield 4 and Battlefield 1 where you get no sound if your playing with a bluetooth headset. After a bit of googling and research i found the solution;
1. Goto; control panel->Hardware and Sound->Devices and Printers
2. Select Properties on your Bluetooth headset and go to the services section.
3. Uncheck “Handsfree Telephony”.
Note this works on Windows 10 cant say if it work on Windows 7 or 8.