to get the textures you need to export them from the substance painter project,if you have difficulties with exporting textures from substance painter, let me know and I will help or provide separate textures.
Biped rig
metal rough
MAX (Autodesk 3ds Max, filesize: 88.9 MB), FBX (Autodesk FBX, filesize: 32.6 MB), MAX (Autodesk 3ds Max, filesize: 88.9 MB), SPP (Substance Painter, filesize: 3.38 GB)