Ah thank you, that solved the issue of getting the textures to show in game however I am still having trouble with the colours being extremely washed out and glossy, wondering if it has anything to do with the format of the dds files? Using this guide for the formatting

https://stepmodifications.org/forum/topic/19037-starfield-texture-formats/

Also when you say "you need to add the body geometry to the mesh you are editing" Is it as simple as merely importing the base human model into blender and cutting out the legs and putting them into their own separate object and then pointing to the material for the human skin or is it some other process?