Remember "KISS".....as in "Keep It Simple Stupid"!
How many hundred million dollars will this system cost?
Think about your Crew Chief playing with his X-Box controller peering into a computer screen and fiddling with some buttons while trying to see hostile fire, maintain his situational awareness, looking out for other dangers, and also performing his other crew duties.
Nothing....nothing....beats a good pair of eyes looking out a window peering over the barrrel of mini-gun or .50 Cal......on each side of the aircraft!