http://www.pcgamer.com/call-of-duty-wwiis-social-hub-is-empty-because-of-connectivity-problems/

Call of Duty: WWII's social hub isn't all that social at the moment. High player volume since launch has caused connectivity problems across all platforms, and one of the fixes has been to make Headquarters a solo experience for now, Sledgehammer Games said yesterday.

That, along with deactivated leaderboards and a couple of performance updates, appears to have fixed the problems, Sledgehammer said. Although clearly it's not ideal—HQ is supposed to be a place where you can face off in 1v1 skirmishes, eyeball other player's outfits and...ahem...watch people open loot crates. "Headquarters will return to its fully-populated, shared experience shortly," the developer said. For now, you can still invite friends into the HQ so you're not completely lonely.