I just tried saving again, and it did look a little different with all the data flashing by, and it shows the mission name in most recent operations, so I guess it works?! :D

It still says NaN hours played, but I was only in game for a couple of minutes, so maybe I have to be in it for longer and actually do something other than fire one shot and get in a helicopter?

Also, this was on Op Landlord, the demo mission. Just to check communication. When I run my own mission and want to go back and continue the fight, how do I load the stuff up again?