So I want to try modding MW3 by myself as it seems interesting, but how would I do it? I see on the Internet that I need MW2 CVAR Checksum Fixer or something, but non of the download links worked, so then I searched Youtube and found a program called MxS MW3 or something like that, that allows me apparently to mod it aswel as add DVARs, but it doesn't appear to work, as the DVARs that I add (which are proper DVARs) just get removed after I save.
