You must use a 3D modelling program (Blender, 3DS Max etc) to make the model (and textures, and animation and so on). You'll need other third party tools as well
(this is so not easy it is untrue ... hardly anyone has done it, as far as I know).If you search the MODs forum you might find some tutorials (there are tutorials for armor/clothing and weapons etc).
Once you have your model all good to go, the CK is used to create the
character (how it fights and so on) to which the
model is added
Best of luck (you will need it!)
