Current cruise missiles are optimised for long range but not for final target accuracy, they actually use onboard offline terrain data to cruise to their target. Accuracy of 99% is considered bad as it might mean collateral damage. Also final target is predefined and aborting or changing target is non-trivial. With these so called "suicide drones", human operators can actions based on current situation, like, pinpoin…
> It occurred to me that if I could invent a machine – a gun – which could by its rapidity of fire, enable one man to do as much battle duty as a hundred, that it would, to a large extent supersede the necessity of large armies, and consequently, exposure to battle and disease [would] be greatly diminished. — Dr. Richard Jordan Gatling
Note: huge fan of Gatling gun