delicate harbor
For some reason, settings and campaign progress (presumably the few things saved elsewhere from ATVI's servers?) don't seem to actually be saving. As a result, settings and the campaign wipe every time you restart, making playing the campaign impossible.
Main "fix" online is supposedly to go to the players folder and uncheck Read-only, but the files are already unchecked, while the folder itself keeps putting the check on by itself.
Tried using both Xbox's and Activision's support, but both are useless. Xbox doesn't even let you contact them properly about these issues (all you get is the option to talk to another player), while Activision's support is outsourced trash with support agents who don't know the games they cover.