I'm not possitive, but I think I saw an article about C-47s the russians mounted guns on as well as rocket rails, to support the troops they were landing. Anyone have some picturess of these? Even better, ones in action?
I´m not sure, but I think C-47 were not equipped with turret.
But Lisunov Li-2 (in USSR build C-47) used Turret and some of them had guns in the windows of fuselage.