For you full scale commercial pilots out there... Is it realistic for commercial jets to have sensors on board to detect a radar lock or threat and also have chaff and flare dispensers?
At least then the black box would record this data and the jet could try to defend itself from a threat. Im not advocating the pilots try to perform some maneuvers. It could even be an automatic response system the pilots wouldn't have to activate it the system would just respond as needed.