this is my batarang model.
textures:
base color in .........................4K
height in .........................4K
metallic ..........................4K
mixed AO ..........................4K
normals(+open GL) ...............4K
roughness ..............................4K
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this model is maded by Cinema4d, painted with Substane painter and rendered in marmoset toolbag. use the the maps for rebuild marerial. the toolbag material is in there and you can use it directly