The scene at the compound ignores the secrecy that a hit should have. Instead if the godfather gives the order in secret to his second in command who then gives orders to the actual executioner. Instead a dozen men are looking on.

Don't forget the AI aspect of "The Moon Is A Harsh Mistress "

In this case it allied with the Loonies to defeat Earth.

E.E. Doc Smith's Lensmen series could be done if they would stick to the PG nature and resist PC.