If the error occurs outside of specific missions, such as in Zombies, ensure your game files and supporting software are not corrupted.
: Switch the display mode to Windowed and lower the resolution below your monitor's native setting. If the error occurs outside of specific missions,
BO2 Error: Failed to allocate from state pool :: Call of Duty such as in Zombies
: Temporarily set all graphical options to their lowest possible setting (or "Off" where available). If the error occurs outside of specific missions,
Most players encounter this error during the LA mission's transition or helicopter crash sequence. This is typically due to a sudden spike in memory demand that the game's "state pool" cannot handle.