When did the Mercury Fields of Glass Crucible map become available? For the last few weeks through Destiny I have learnt that I'm not the completely useless person in FPS multiplayers. So up until recently I didn't really pay attention to the crucible maps. But last night in Skirmish the match took place on Mercury. I thought it was going to be a part on the upcoming DLC? Or has it be opened up recently and I've just missed it completely by chance?