Rigged for Unreal Engine - tested in UE4.27 - see images below. You are free to use this model in any way. Click download and select original format. Unzip the downloaded file, open the source folder and unzip the file in there and this will give you the FBX file and a number of MET textures. The FBX file can be loaded into UE4 selecting the UE4_Mannequin for the skeleton. Texture and normal maps are embedded and will be loaded automatically. The extra textures (MET) are for the metallic nodes in the appropriate material blueprints (load these into UE4 manually). Roughness set to 0.2 generally works for the metallic materials.