Make things for warfare.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Attached is a link to the image of the error I am getting. I did not get this issue before I updated it. https://imgur.com/a/FoaFt8b
Factorio 18.2 seems to have fixed it. The one thing I hadn't updated. LOL.
