Please don't make us have to build individual rockets again! I beg of you! Instead how about building a rocket squad, which could be deployed to a province and then will periodically lob rockets at the target/s. Or it could be sort of like an infrastructure improvement though that would probably make it hard to move.... the point is, for as fast as you use them and they're on good in large numbers its to annoying to build a horde of them and then have to manually deploy each one to its target, use them and then go through the process over again.
And this time, please let the computer build and use them as well!
And this time, please let the computer build and use them as well!