Purchased at launch & still not working

I purchased this at launch. It’s December 14 and I still can’t access multiplayer. They really need to start issuing some sort of apology in the form of downloads or anything that makes up for my wasted $60 purchase. How does a studio of this caliber -Yoink- up so badly?

-Inexperience?
-Too complex of a task to put all 5 games into one?
-Unrealistic release dates set by Microsoft?
-Poor beta testing?
-Too many projects at the same time?

I dunno, pick a reason. Or three…