Don't post here if you unable to provide a save game for us with all campaign complete because I already lost a save game file due to reformat and don't want play over again.
I found one but without GFWL profile so I hate GFWL at all. *hammer on M$*
Well, only shared saves will work for single player, just play in offline mode.
When you upload the saves, also make sure if Xlive profile is included too.
You can find Xlive profile: Computer/C:/Users/"Your username"/AppData/Local/Microsoft/Xlive then copy all into single folder.