Your question is not clear. Actually making models take a quite long time. Models are a 3d art. Which means models are made by softwares like Autodesk studio max , or Blender , or Maya studio, Or Xnalara... And models have to be animated. After modelling is finished, they convert the project to mdl file including jpg/png textures which will be converted to blp textures. And finally import it into warcraft. It's a hardwork stuff, needs months of experience.