If a specific checkpoint is corrupted, use the "Rewind" feature in the campaign menu to restart the mission from the beginning rather than loading a mid-mission save.
If you are playing on a heavily modded server (e.g., custom zombie maps with 4K textures), this error is almost inevitable. The base game’s memory pool was never designed for modded content. In that case, switching to the Plutonium launcher is the definitive fix, as it completely rewrites the memory handler. If a specific checkpoint is corrupted, use the
To fix the "Failed to allocate from state pool" error in Call of Duty: Black Ops 2 If a specific checkpoint is corrupted
