Click . Steam will re-download any missing or broken assets. 3. Mission-Specific "Workarounds"
Windows 10/11 aggressively compresses memory, which confuses BO2’s allocator.
Users have successfully bypassed this error using the following methods: Aggressive Graphic Downgrades
BO2 Error: Failed to allocate from state pool :: Call of Duty
In Zombies or Multiplayer, avoid editing classes or opening menus during the pre-game lobby if the error persists there. How To Fix Black Ops 2 Not Launching