Originally Posted by bartender530
how do you get the mod to work in the game?
i had tried to do it from another file but it would not let me transfer the gamesave back to my xbox
Replace gamesave with your campaign gamesave, swap ID's, rehash & resign, save to device, overwrite old savegame.svg, resume campaign on MW3.
Make sure to hit start and "Save and Quit" as soon as the mission starts or it will freeze your console.
Go play survival mode!