Arma 2.22 added the ability to show Soldier equipped backpacks in vehicles, which works fine but the NVG variant properties don't work for CargoTurrets.

There are several existing properties that could be used for them. I don't have a preference for which one is used.

class MyVehicle {
    showNVGDriver = 1; // Pilot
    showNVGGunner = 1; // Co-pilots and gunners
    showNVGCommander = 1; // Commander

    class Turret {
        showHMD = 1; // Defined in CargoTurret, but doesn't work
        class TurretSpec {
            showNVG = 1; // Some variant could also be included in the TurretSpec class to match the new showBackpack parameter
            showNVGGunner = 1;
            showHMD = 1;
            // showBackpack = 1; // Added in Arma 3 2.22
        };
    };
};