Why are sphere shaped missiles impractical? I am assuming the main points are that there wouldn't be enough space for fuel, and that the sphere is not the most aerodynamic of shapes. So in order for this to be viable fuel would have to be considerably dense, warhead considerably powerful, and guidance systems considerably generous to ensure the missile doesn't have the accuracy of a deflating balloon. Are my assumptions correct? Are there any major points I am missing? I'm sure it's a stupid idea, but I'd like to know why.
Why do I want a spherical missile? In order to have more of them, of course!