I've been trying to spawn husks while hosting a server using the commands "spawn husk" and "spawn husk inside" and I can never get them to spawn. I've even tried spawning them in shuttles so that I can easily see them as they spawn and it does not work. How do I get husks to spawn with commands?

For husks its spawn husk cursor/inside/outside
Cursor means he spawns on your cursor(doesnt work when running server in command prompt)
inside means they spawn some where in your sub, its randome. They cant open doors tho so It isant that great, and they could spawn next to other players of they are unlucky.
Outside means that they spawn outside the sub, you can replace it to by near or far. self explanatory what that means

check the folder with creatures, if you don't have the XML inside the character folder then you need to find it and download it from internet.