Thank you for your interest in the package, please see the below:
Format: Blender / Cycles
Scale: 1:1 (Real world scale)
Materials: Principled Shaders
Scene: Blender using included HDRI for lighting, cameras using focal depth which can be switched off.
Objects: Smooth modifiers left on, stack intact (in other words the model could be used for low poly environments if you switch of the smoother on the bow.
Layers: Hero objects - layer 1 Background objects - Layer 2 Cameras and plane with shadow catcher enabled - Layer 10