Original top-down battlefield terrain map for a run-and-g...

Original top-down battlefield terrain map for a run-and-gun arcade game, strict orthographic bird's-eye view, directly overhead, flat 2D game map, no perspective, no horizon, no 3D side walls. Terrain layer only: ground texture, concrete, gravel, tire tracks, oil stains and hazard paint only. No trees, no bushes, no buildings, no walls, no fences, no vehicles, no characters, no props, no text, no UI, no watermark, no border. A wide cracked concrete road runs vertically through the exact center of the frame at a fixed width, clearly readable as the play lane. Flanked by flat military concrete apron: poured concrete slabs with expansion joints, oil stains, tire marks, faded yellow hazard stripes along the road edges, patches of gravel and dirt, minor drainage grates. Flat ground only. Painterly semi-realistic retro arcade game art, cold grey concrete with muted olive and rust accents, low visual noise, soft contrast so player sprites stay readable, uniform overhead ambient lighting, very