Can't play anything.

To begin with I was unable to find any matches in multiplayer. It was sort of expected as not too many people are on around the time I was playing. I decided then to go and play campaign. When I tried to start the game it would just get stuck in the loading screen and the loading bar would not move at all. So I was unable to play both campaign and multiplayer.
(note: I was streaming to my pc if that makes any difference.)