ROV (remotly operated vehicle) as mid detailed 3D-model. The size is typical for a Work Class ROV (length aprox. 2 meters). Unmanned submarines like this are often used in marine science but also offshore industry (gas and oil).
Materials and texture included, but they look best in the native file format. If you can't use it i suggest fbx as the second best format in this case.
The Manipulator has multiple joints. They can be easily manipulated in C4D via sliders (user data, manipulator root object). Even the gripper works smooth using the sliders.