The new game appears to have adopted something akin to Overwatch's "Play of the Game" feature.
As the trailer introducing Headquarters shows, there will be live leaderboards overlooking the battle arenas, as well as the opportunity to socialise with other players and earn rewards and upgrades.
WWII is the Call of Duty franchise's return to its roots after its troubled recent iterations.
The concept could have been at least slightly inspired by Destiny's The Tower, the futuristic shooter's own social space.
Here's a look at all the available modes, activities, weapons, score streaks and more available in the Call of Duty WW2 Beta.
Surprising every Call of Duty fan, Sledgehammer Games and Activision have launched Call of Duty: WWII's private multiplayer beta earlier today, and everyone has started to play the game. If you haven't done so, do yourself a favor and head over to the Call of Duty's official website to reserve your spot and secure a code.
At level 21, players can choose to unlock the S-Mine 44 lethal grenade, and the Energetic basic training option becomes available at level 23.
Modes - Fan-favorite modes, including Team Deathmatch, Domination, and Hardpoint.
While the Call of Duty: WW2 beta is locked away from those who haven't pre-ordered the game in U.S. and Europe, it's open to all on the Singapore PlayStation Store. However, in the full game, reaching level 5 unlocks the unique Division Weapon. The second session runs from September 1-4 on both PS4 and Xbox One, also launching on 10AM PDT/1PM EST. No single-player campaign or Nazi Zombies content will be included in the beta. The Campaign mode transports players to the European theater as they engage in an all-new story set in iconic World War II locations.