User blog comment:Drkdragonz66/Call of Duty: Black Ops brought to Mac by Aspyr Media/@comment-124.182.13.63-20120630031049

Wouldn't Steam be an issue? Or are they going to release it to Steam or cut out the multiplayer entirely?

Here, I'll put it in an easy way for Activision to understand. How are you going to sell the DLC? You can't just gift OSX users DLC for free, right? Apple haven't paid you for that right...