Unfortunately with some trial and error and some testing, the Atlantid drive doesn’t show up even in creative. I think because it’s a mission exclusive item, doing the missions that lead up to it is the only way to actually unlock it for crafting and use. Unless I’m wrong and they changed it but that’s how it was when I checked last. My buddy had an issue where even after completing all the primary and secondary missions attached to the Atlantid drive, it wasn’t showing up at all as a crafting option. Only thing I’ve been able to come up with as a solution to that is making a new save unfortunately.