Im looking for help to reapply textures and maps to models from r6 siege game in Cycles Render. I downloaded his imported models from his Devian (link below) and i imported .obj file , but i have no idea how to reapply specular,normal and detailed normal maps. Only what i've got is diffuse texture but no clue how to reapply other textures :

Here's the link to the character im trying to use: http://luxox18.deviantart.com/art/Rainbow-Six-Siege-Tachanka-650518471

I hope someone can help me with this , because node setting is a painful and hard thing in blender :(

(ps): if someone had time to make whole node tree for this model i would be so glad for it , cause i want to use other models too :)