USS Constitution, Fallout 4, post-apocalyptic, historical ship, wooden structure, cannons, tattered American flag, rusted metal, weathered textures, scavenged technology, retrofuturistic design, robotic crew, Sentry Bot, Protectron, high contrast lighting, dynamic shadows, overcast sky, Boston skyline in the background, dilapidated buildings, 3/4 view, dramatic angle, ambient occlusion, desaturated colors, gritty atmosphere, concept art style, detailed textures, environmental storytelling.