(both the 2011 original and 2023 reboot), the traditional developer console is officially disabled or heavily restricted. However, depending on which version you are playing, there are community-driven workarounds and alternative methods to access similar functionality. Modern Warfare 3 (2011 Version) The standard console was removed in later patches, so the key will not open it by default. Config Modification (Key Binding)
If you really want a console, is the only stable, safe, and active solution:
The short answer to “ how to enable console in Call of Duty Modern Warfare 3 patched ” is: The feature was deliberately disabled over a decade ago, and no launch option or config tweak will bring it back.
Blocked Drains Barnet