“We Messed Up,” Leading Activision Developers Admit

In a recent interview, the developers candidly discussed the issues plaguing the game and their plans to address them. The studio acknowledges that Warzone is broken: “We messed up everything and promise to fix the problems.”

They also explained why the game is in such a state:

Warzone was initially created solely as an expansion for Modern Warfare 2019, but after its incredible success, they decided to integrate the game with future CoD titles.
These mergers caused “significant development issues” because the game seemed “overloaded and bloated” due to Black Ops Cold War and Vanguard.
Warzone ceased to be Modern Warfare and lost its uniqueness.
The developers lacked time to identify and promptly fix errors, as the game had too many ongoing events.

In conclusion:

Warzone hit a technological ceiling due to mergers with other games. Currently, development is underway for Warzone 2 and Modern Warfare 2 on a new engine — they will address the current issues.