Sledgehammer Games is working on keeping Headquarters in Call of Duty: WWII updated and constantly fresh with dynamic elements.

One example of a dynamic event in Headquarters, shared by GameInformer, is that players will have to use anti-air weaponry to defend HQ from an enemy airborne attack.

In addition to dynamic events, GameInformer reports that SHG might update the HQ with seasonal-based events for holidays.

SOURCE: GameInformer