My mic (Logitech C525 Camera Mic) refuses to work with this game, while it works with The Division (and other games) flawlessly. I tried to deactivate all other input devices, via Win10 audio control panel, leaving Logitech's mic as the sole input device, but it still doesn't work.
My system specs:
Windows 10 Home 64-bit (1709 - 16299.125)
Intel i7 950 @ 3.07GHz
M/B ECS X58B-A3
16GB DDR3 RAM
ASUS nVidia GTX 970
I disabled the XBOX Game Bar and the Game DVR and the mic now works...