My friend wanted me to do this because it was a really cool visor, but this is NOT MINE. The original idea and image is from a old old forum, and i'm just reposting it for new players. Steps: Download the mod TextureReplacer. I suggest you do this with CKAN. Then, once the TextureReplacer mod is in GameData, open it. Then go to default, and open it. Paste the image below into Default, and enjoy the results. GameData<TextureReplacer<Default. If something went wrong let me know and i'll try to help you fix it.
Image: