A 4 m palisade bay: seventeen sharpened pine stakes of uneven height driven into a bank of spoil, tied by two rails on the inside face and held by a raking brace at each end. The pivot is on the grid origin, so bays run end to end round a compound. Dimensions 4.18 × 3.02 × 1.43 m (X × Y × Z). Metre units, +Y up, +Z front; origin on the ground at the footprint centre unless stated. Damp conifer forest realism: wet concrete and corroded corrugated steel, weathered pine, dark bark and soil, deep needle green, olive canvas, gunmetal and machined steel, with five emissive colours (amber fire, white floodlight, green status, blue screen, red warning) that also form the loot rarity ladder. Static geometry; no rig, animation, collision or navigation data.