I checked the substrate and I have 5 Juggernauts in skirmish and one is the eye of darkness. I didn't check PHC but assuming it's ok. I also seem to have the maps.
I guess when I was missing the Juggernaut, it might have been in the campaign but it all seems to be good now.
Strange how it's included in GOG but it's a separate DLC on Steam. It also makes it confusing, but having it included in the base game makes it easier not to have to install more DLCs.
An official response to say as much would have been really useful.
Sorry for the post.
