A concrete wall bay with a 1.12 m by 2.42 m doorway through it: a lined reveal, a proud lintel, a steel threshold plate and a hinged steel leaf with a push bar, a kick plate and three barrel hinges on the left stile. Dimensions 4.02 × 3.52 × 0.50 m (X × Y × Z). Metre units, +Y up, +Z front; origin on the ground at the footprint centre unless stated. Overcast realism: weathered concrete and faded brick, olive drab, gunmetal and machined steel, with hazard orange and safety yellow accents and emissive loot glows in the grey, green, blue, purple and gold rarity ladder. Rigid node-transform clips open, close turn named parts on their own pivots. No skinning, no skeleton, no collision or navigation data. The wall, frame and threshold are fixed; only the leaf turns.