futuristic wall segment 3d model

Create a single modular sci-fi wall segment for a first-person shooter game environment. The wall should be a reusable base wall piece that can be duplicated and placed side by side to build the outer boundary of a map. Shape: A straight rectangular wall segment, about 4 meters wide and 3 meters tall. The bottom edge must be perfectly straight and flat. The left and right edges must also be straight and clean so multiple copies can connect seamlessly. The back side of the wall must be mostly flat and simple. The front side of the wall should be detailed and visually interesting. Style: Stylized semi-realistic sci-fi. Clean hard-surface design. Futuristic architecture. High-quality game environment asset. Dark blue-grey metal and concrete materials. Subtle panel lines, layered sci-fi shapes, vents, inset sections, light mechanical detail, reinforced top edge. Slight wear, but not broken, ruined, or dirty. Important: Only one wall segment. No floor. No terrain. No buildings. No roof.