Hi, I just noticed that during the playback of the background sounds on the campaign map there is a slight silence as the track loops to start over. This background sound consists of mostly wind noise, with many birds songs and chirps and the odd owl hoot. I'm not sure whether short hard silence is due to a gap at the start or end of the sound file, or due to the way lopping and playback is handled. Either way is might be possible to put in a gradual fade out/in at the start and end of the sounds file to make the gap less harsh, 0.5-1s should be more than enough.
