I still can't find a way to get the "Base Under Attack" lady to STFU since the recent "update".
Due to fresh install of the new version the lady came back, but since I wanted to give the original sounds a new chance, I just put a sound file named "warning" into the "sounds" folder. Nothing else there. Now I can hear that music again, took it from Ranger's pack.
The music slider of the game is on 0, I dislike background music while trying to figure out what all the whines and roars in my cartoon plane mean. I suppose the real WW2 pilots didn't have entertainment in their headphones, either. OTOH I guess it wouldn't hurt to have some wartime music playing when in tower or hanger.