Gemini style Rocket

This is a rocket i made that, i'm not gonna lie, looks exactly like the gemini program Atlas rocket. I'm very happy with the results and thank you for downloading note: I'm new in blender and I don't know how to activate some type of radial mirror/simmety like in Kerbal Space Program. This thing im talking about is something i dont know if it exists, so, I can be wrong. Happy Printing!