Firstly, the metropolice needed an Urban look for the mod and a more real effect applied. So upon editing, I created a camoflauge texture and changed the colour of the metropolice's jacket. This was desaturated to make the camoflauge suit the rest of skin.
Then the phong effect is added. The rim-lighting effect gives a life-like lighting technique. When creating the VMT the basics are made. Looking at the Combine Soldier's VMT setup, it was set out the same so that it gives a similar effect. The phong textures and bumpmap is made and then defined the Metropolices VMT. A rim lighting is then added, this was done by looking at the Vortigaunts phong shading and putting that into the Metropolices skin.
Thanks for reading and keep watching! :) Check the screens to see the skins!