Hi Skoshi,
See here if you like. It's very basic, with default control setup only I'm afraid.
http://theairtacticalassaultgroup.co...Turret-Control
(Yes, you can hear the turret gun from the cockpit, only last night, I got a 'Skipper, Bandits 4 o'clock' from my crew and then the gun strted firing. They shot me down anyway though!).