Few things. One. Microsoft owned halo so they paid out there asses for halo to be exclusively there's. Now that it's a open plain field Sony is throwing the $$ seeing how much the game is going to profit them by getting early access DLC and content since halo was such a success they see destiny going the same way so don't hopped on. They didn't buy the entire game but they got a tight hold knowing how far Microsoft will be willing to pay for there games. Destiny was originally made by bungie members that were from halo but Activision and them had to many "budding heads" if you would say the full game of destiny if launched properly were actually suppose to include more content than both DLCs and ttk. But activision being the head of the group has the final say so if they want to launch it "on time" then they will do it. To be honest if they were to launch it when the game was done you are looking at maybe a delay till sept of this year. But they cut half the stuff out and said lets put half onto expansion packs to make more $$ for people. Bungie that is working on destiny now isn't the team that made halo. They are pretty much just puppets of Activision. Just look at the games bungie made in the past without activision and when they were in control. Yes some of them were delayed but look at the beginning product people -blam!-ing loved it.