Cod 4 Undercover is a little mod where a task force has to grab some documents before they fall into enemy hands. Mod has been cancelled due to an error. The call of Duty 4 project or known as Undercover but the Project has been cancelled due to an Error on the Cod 4 Compile Tools. below i am going to say the Error. Error During initialization: []Hunk initialization failed. File system load stack not Zero so if anyone can tell how to fix that then please let me know.