Trying to Change Soldier languages

I play on XBox and my system language is set to german and it would be best if it stayed that way. But I still want to hear the english voices of the soldiers. The only way I found to archieve this, is by changing my system language to english which also changes the "system" language of every game I have on my console. 

Why is it like this and who thought it would be a good idea to not give the player the option to change it manually. 

Surely, I am not the only one who is bothered by this. I would highly apprechiate it if DICE could bring out a patch with the option to change the soldier language alone and nothing else.