Woah it is two games. Multiplayer is its own app.That was announced years ago that MP and SP was being released separately.
I don't understand why that could happen. Assets seem to be shared between campain and multiplayer so it's not like they were made individually.If I'm not wrong MP uses the power of Cloud for fully destructive environment... you can destroy everything.
SP not.
BTW SP and MP are handled by different developers.