This is the #1 fix. If you are on Windows 10/11 N or KN, your OS literally lacks the music and video components Ghosts needs.
This file is the core executable for the single-player campaign and the offline portions of the game. If this file cannot find a specific "entry point" (a function or memory address it needs from a system file), Windows throws the error. iw6sp64-ship.exe entry point not found call of duty ghosts