This is somewhat related to this ticket: http://feedback.arma3.com/view.php?id=1972
When checking the contents of a box, "NVGoggles" are listed as Weapons.
Adding them as Weapons however will give you bugged NVGoggles that somehow go in the Binocular-slot.
Adding them as Item works but that means they should be recognized by the getItemCargo command and not the getWeaponCargo
Create an empty box named "somebox".
Manually put some "NVGoggles" in it.
getItemCargo somebox;
returns => [[],[]]
getWeaponCargo somebox;
returns => [["NVGoggles"],[4]]
Create another empty box
somebox addWeaponCargo ["NVGoggles",3]
somebox addItemCargo ["NVGoggles",3]
Suggested fix:
getWeaponCargo -> should not list NVGoggles
getItemCargo -> should list NVGoggles
(this applies to all kinds of NVGoggles)