submarine, Grand Theft Auto (GTA) style, sleek metal body, periscope extended, underwater, coral reef, colorful fish, ocean floor, sunken ship, treasure chest, dynamic lighting, murky water, bubbles, side view, 3D model, realistic textures, steel gray color, propeller in motion, aquatic plants, submerged rocks, artificial intelligence, advanced technology, exploration, deep sea, wide-angle lens, ambient underwater light.