Open the editor and place a unit down and add the following line to their init:
if they are BLUFOR:
this unassignItem "NVGoggles"; this removeItem "NVGoggles";
or if they are OPFOR:
this unassignItem "NVGoggles_OPFOR"; this removeItem "NVGoggles_OPFOR";
Preview the mission and attempt to use your NVGs by pressing 'n'. Your screen will light up as you have NVGs yet it will be the entire screen lit up instead of an ellipse in the center as when you have NVGs in your inventory.