Generation colony mothership (2000.0 m long x 600.0 m wide x 600.0 m high, +Z nose, +Y up, origin at centre of mass) with forward geodesic shield dome, three rotating habitat rings, cargo/fabrication module bays, spherical docking hub with crane arms and four docked shuttles, and quad-nozzle fusion engine section with diagonal radiator wings.
Triangle count: 165,764 triangles across 12 mesh nodes (Hull, Ring_1..3, Turret_1..4, Gun_1..4) and 22 empty game sockets (Thruster_1..4, Dock_1..6, Muzzle_1..4, Hardpoint_1..4, Camera_Chase, Light_Nav_L/R, Light_Beacon); GLB size: 11.23 MB.
Materials (9): Paint (neutral baked detail + editable baseColorFactor [0.80, 0.80, 0.78]), Metal, ScorchedMetal, ReactorHull, HullTrim, Containers, Glass (alpha BLEND dome & shuttle canopies with cockpit interior), Lamps (emissive habitat windows, energy arcs & nav lights), Engines (emissive orange/blue fusion core).
Texture sizes: Cycles GPU baked world-scale tiling and trim maps at most 1024x1024 px for Base (JPEG) and at most 512x512 px for Normal and packed ORM (Occlusion/Roughness/Metallic).
Poly Haven CC0 texture IDs used: metal_plate_02, rusty_metal_03, rusty_painted_metal (https://polyhaven.com/license).
Differences from reference sheet: connected all four escort shuttles via physical umbilical docking booms so no geometry floats, added four articulated point-defense turrets with elevating barrels, and baked neutral Paint texture for runtime faction recolouring.