I assume they take digital maps when possible. Most countries will have digital maps of their territories, be it for military use or research or other. And many companies do to. Digital car navigation existed before google maps and logistics companies for sure had digital maps as well.

For some parts I am pretty sure they just scan paper maps and convert it by hand.

Of course all of that is some sort of “maping”. My previous comment was slightly clickbaity. But the process is still, Maps first, satellite later and not the other way round.