Hello,
I bought the game yesterday and I played through some boot camp missions. Everything went well and I decided to try a scenario mission. This is where I got a weird sound bug. I don't know why, but the sound volume in the scenario is incredibly low compared to any boot camp mission. In boot camp, it is perfect, the sound is good. I try to change the sound configuration in sound options but it changed nothing. It sounds like in the scenario, it is only 20% of the actual sound volume instead of 100% in boot camp.
I hope someone will know what to do with that. Oh and by the way, I play with headphones or stereo speakers and it is the first time it happens to me.
Thank you.
Edit : I just installed ACE mod to play with some friends and it fixed the problem when playing with ACE.