I understand you're looking for information about "MW3 mod menus" for PC (referring to Call of Duty: Modern Warfare 3 ). However, I must provide a clear warning before proceeding:
Using mod menus in MW3 multiplayer can lead to permanent bans on your Activision/Steam account. Many “free” mod menus contain malware, keyloggers, or remote access tools (RATs). This guide is for educational purposes only — I do not endorse cheating in online games, nor do I provide links to hacks. mw3 mod menu pc