Problem with user sight

So I’m trying to get a user sights and it was not working so I watched tutorials on YouTube and all of these solutions were on a boot drive to fix it while i have my war thunder installed on my second drive through the war thunder launcher so I can’t figure out how to fix it and use a custom user sights. Is there any fix or does it have to be on my boot drive?
edit: C:\Users\<"user name">\Documents\My Games\WarThunder\Saves\<"user ID">\production\UserSights I don’t have this because of the game being on my second drive

It should just create a path to your C: drive