When you set up Modern Warfare 3 offline via LAN (Local Area Network), you are talking directly to the machine next to you. Whether you are playing on PC via Steam’s "LAN" option or linking up six Xbox 360s in a garage, the latency is often under 5ms.
On consoles, if you are not connected to the internet, the game will automatically prompt you to enter "Offline Mode" or "Local Play" from the main menu. You can also force this by turning off your internet connection manually. call of duty modern warfare 3 lan multiplayer offline
The ultimate guide to OFFLINE features, split-screen, LAN, Bots etc. When you set up Modern Warfare 3 offline
: All weapons, attachments, perks, and equipment are typically fully unlocked Bots etc. : All weapons