2-5-12: Initial release.
2-12-12: Added TeknoMW3 2.5 link.
If you have been living under a rock for quite some time. Modern Warfare 3 has a dedicated server package. The problem? If you want to do this true offline LAN with your MP server, it cannot be done.
Alas, team Teknogods made a TeknoMW3 loader that will allow you to play MW3 MP LAN server online or offline, using your real LAN, or have other people connect to you via a VPN program. In the loader, it has both the spec op mode, as well as the multiplayer mode too available.
For sake of time, you can refer to my pastebin link below for all the details on how to update your game, and use the dedicated server package. Later in the week, I will update this article with screenshots and text instructions on how to get your MP Dedicated Server up and running in no time.
See link: Pastebin Text Tutorial
Downloads: TeknoMW3 2.5: Mediafire
See video tutorial below: