already exist to toggle NVG and Thermal Vision on cameras created using camCreate.
A command to allow this vision change on a player's view without scripting cameras would be handy.
The closest workaround to this is to have a player without NVGoggles equipped using
player action ["nvGoggles", player];
The command would apply the appropriate vision effect to the entire field of view, omitting the NVGoggles blacked out edges.
This could alleviate issues with switchCamera on another player not showing their vision mode as well, as described in https://feedback.bistudio.com/T122792