In coop game does not register my fully functional microphone. Other games no issue. I can hear my friend fine. He does not hear me, the speaker icon indicating sound input via microphone does not flash for me in menus or in game - like game does not see microphone. No change in voce menus influences this, tried it all.
I bought the cheapest USB sound card I could find. Using that one instead of my onboard sound solved the issue. My conclosion from this is that this issue is caused by FC5 having some issue detecting plugged in microphone on me onboard soundcard. I.e. this is a problem with the game as every other software I tried is working fine. Also not an issue with headset as i am using a simple 3,5 mm jack standalone microphone.