What a fantastic helicopter.
A few things I've noticed
-The GSH with the 20mm cannon has no reticule in first person.
-To enter the aircraft you have to open the doors which realistic is kind tedious.
-I can see that the co-pilot's screen on variants that don't actually have the screen.
For the sight, I see the ARMA 3 sight but I wonder if you've thought adding a grease pencil sight like the MELB mod uses. I've never seen the inside of a gun pod armed airframe so I don't know if there is a real gun sight and I just hadn't heard of one with that 20mm cannon before now.
Anyway absolutely stellar work so far, this is a fantastic little airframe.