Materials are all PBR compliant to make lighting more consistent and easier. Included are three texture maps. Diffuse map, '_g' map (roughness and metal map packed in channels), and a normal map. All maps have a texture resolution of 2048x2048. Textures exported as .TGA.
The model is exported as both .OBJ and .FBX (both accepted by Unreal Engine 4.
_c: Diffuse map
_g: Roughness (Packed in Red), Metal (Packed in Green), Opacity mask (Packed in Blue)
_n: Normal Map