so i have been playing around with a usb flash drive the last couple of days and i have modded mw2 black-ops offline every thing worked great but i cannot mod WAW every time i download a save i put the devise id and profile id in the modded one delete the non modded one and switch it with the modded one. i go back on my Xbox and look at memory and it says i have a saved waw game on my offline account then it should be the modded. the only problem is i go on the game and it says new game or select mission please help.

also i have been doing it on an offline account so i have not completed the campian so i was making my save on the first level i need help with this so idk if i need to finish the campaig just please help me.