I was wondering whether non-vpk file types will be able to be uploaded to the workshop in the future. The first type that comes to my mind is .nut files, i'm sure there are others as well. Squirrel vscripts can be used by other mappers in their campaigns to make them more dynamic, while other players can also download them to put into existing maps. If it's a one or more .nut files, there's no point in putting them into a .vpk, as they'll be converted anyway after being put into campaign folders.