I just uploaded the fixed wings single player mission video in Eyefinty and you can clearly see the issue happening whenever I turn the jet: https://www.youtube.com/watch?v=szvPc_-aBc0

Still same issue here. I just uploaded an Eyefinity video of the vanilla fixed wings mission and you can clearly see the issue whenever I turn the jet - https://www.youtube.com/watch?v=szvPc_-aBc0

I can also confirm this issue. No explosion and weapon sounds after using team switch (after death)