Modular subterranean robotic complex in a concrete utility tunnel. The robot consists of connected modules: a boring module with a drill head, a sensor module with cameras, lidars and a thermal imager, a combat module with small arms, a power unit, and articulated joints for maneuverability. A thin fiber-optic cable trails from the rear of the robot. Nearby is a ground control station with a fiber-optic spool. Lighting comes from the robot's own lamps, dust in the air, concrete tunnel lining visible. Style: technical realism, 3D render, side-front view. No people.
