As you probably already know, german tank commanders preferred to fight unbuttoned. What I'm suggesting is adding another level between buttoned and fully unbuttoned where only your head sticks out. Personally I prefer tanking like that as well, makes a huge difference on situational awareness.
Secondly... shouldn't the PzIV have considerably better optics than the T34?!
Secondly... shouldn't the PzIV have considerably better optics than the T34?!