Campaign mission refusing to load

[Campaign mission refusing to load]

I got the mission to load, just had to restart (grr) the previous one. I have a feeling this issue is connected to some freezing issues I was having with one of the earlier missions. Reverting corrected that too. The conclusion I came to was the samegame files corrupting, as I got an error message after an attempted load. What is up with savegames corrupting? Is it anything to do with steam, or some serious bug BI overlooked?

[Campaign mission refusing to load]

I am on the mission in the campaign where at first you have to retrieve the documents and report back to the Manhattan base. When the mission ends at the insurgent safe house, the next mission starts to load. The loading screen just says loading and the next mission simply refused to load. How can I fix this problem?