This Tutorial that also comes with a Video and Written version explain how to create a Normal map and add a Alpha Channel to it and decide the Specular Levels of the Normal Map Alpha Channel. the mod is aimed at a Amateur Audience such as myself not the veteran modder but they can still feel free to take a Look if they want.
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As what was in the overview this mod aims to teach Modders and Gamers a like how to create a Normal map and the Workflow behind the creation I use Gimp to create my maps but Photoshop will have the same Idea.
Also this tutorial is me creating a Dull Normal map one that is not Shiny like Metal. and by the audience looking at how I create a Dull Normal Map they can go in reverse if they require a specular Glossy normal map but its all dependant on the Alpha channel.
the Video tutorial is quiet and short but I take time in showing each step on what I'm doing at the time to get from point A to Point B.
The Written tutorial is more Brief and descriptive on what I'm doing but has no images so it would be better to first watch the Video tutorial first and if you get lost come back to the Written tutorial.