Music will be, but you may always to replace it by own or to switch off.
Good music creating some mood. Depending of human character and age the music is different for the creation of mood.
I personally always prefer good hard rock if its background... just for the mood. However with the great attention I'm listening on my hi end euipment only art and progressive rock.
I also accept old symphonic orchestra music in WWII films and also WWII theme games... But then if it is possible - will listen just couple of times and will replace by my favorite, instrumental.
I know several songs that were inspired by Il-2 (Russian and English languages).... Good to use in trainings
Today will be small update. No time. And version in rebuilding. Making on previous version.