Start Modern Warfare III and go to the main menu. Connect Controllers: Turn on your second controller.
For the original MW3 (2011) and the modern reboot (2023), the following technical configurations are standard for offline LAN play: call of duty modern warfare 3 lan multiplayer offline
Optional but Recommended: Temporarily disable firewalls or antivirus software, as they can sometimes block LAN traffic. 3. Launching the Game Launch Call of Duty: Modern Warfare 3 on all computers. Go to in the main menu. Select Private Match . 4. Hosting a LAN Game On the host machine: Choose "Private Match." Start Modern Warfare III and go to the main menu