Just flew a night sortie in BS2 and one thing that struck me, was the ambient light in the cockpit when dumping flares. There is none! Seriously I would think that just one flare almost ejecting besides the windows would make everything very bright. Especially when wearing NVG´s. Those bastards should make me blind. Other issues where ambient light is missing is when firing weapons at night, including guns/rockets/missiles. I think this is very important for realism.
BTW I think the other lighting effects from the skhval and flightinstruments in the cockpit look awesome through the NVG´s.