This post in especially for Nomad Soul regarding the 1.1 update. Well, the shader that you use for the character in your mod is nice, but I would recommend the shader in the attached post if you are to use it with the mod. You might already have it - 'lambert_subsurface_illum_fresnel_hemisphere_shadow.fx', or even your shader might be based on this shader. But, I don't know that.
Also, I have found that this shader has a better system of responding to dynamic lights, and a better planar shadow projection (it looks good too). And, it is also less performance demanding. So, if your next update can feature this it would be uber (and yes, with some tweaking).
And here are the tweaks that needed to be done, and I will be posting images as soon as I figure out how.
1. The shader uses all of the four I,S,N and D(2) textures. But the shadow projection in only on the plane surface that corresponds to the x and z axes. It would be ultimate if the projection also be on a vertical surface (because, when there is a wall, the shadow just goes underneath it).
2. The shader, especially the shadow, responds very well to static lights and the change according to the direction and distance from the lights. But, the shader does not respond well to the player camera at times. For example, the character using this shader is on the edge of a map with a few segments behind it and the light source too is a few segments from the character. Usually, the shadow looks uber cool, but as soon as I get behind the player, the shadow shortens, as if the character is very close to the light source. This should be fixed.
3. Only a single shadow is projected. If shadows in multiple directions could be presented, which are affected by various light source in the vicinity, it will be awesome.
4. In both the shaders, I have seen that, the gun shadow is not emitted even if the character and the gun uses the same shader. This should be made available.
5. Some functionality tweaks should be carried out.
And, please note that I might be wrong at some points, so please do not form any other opinion about me as I am just trying to conceptualise some points. And, yes, I don't know DBPro. Also, this shader was freely available at various threads without any restrictions, so I took the freedom to post it as an attachment in this post. And, forgive my English, if I have made any mistakes. I'm Indian.