Do You Need to Have Modern Warfare 2 Installed to Play Modern Warfare 3?
Learn whether Modern Warfare 2 is required to play Modern Warfare 3 and how the games operate as standalone titles in the Call of Duty series.
Why Is the Call of Duty MW3 Campaign Not Working? Troubleshooting Tips
Learn why Call of Duty MW3 campaign may not work and how to fix issues like corrupted files, outdated software, and system requirements.