From that perspective you're seeing the underside of the mesh, and that area is going to be dark in Bodyshop. Could just be a Bodyshop artefact. Have you checked ingame?
The hair looks fine in Milkshape, the UVs and texture don't seem to have anything iffy going on, so it's probably just the inside/normals playing up a bit in Bodyshop.
The hair does lack the "HasTangentArray:" lines (the lack of this one causes the "bright CAS bug"), so could potentially have something to do with that, but I doubt it since it's more of an ingame issue.
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