1)Further info from twitter confirms cold heart deals Arc damage and sits in the energy weapon slot. 2)Players who don't preorder will still get the hands on the gun this December. On a separate note I have to say I don't know what's happened on this forum of late but the sheer amount of loathing/hate for any new announcement is beyond belief - in fact I would go as far as to say that the forums are in the worst state I have seen since the original titles release. Quite why anyone from Bungie would ever bother reading some of the disrespectful comments on here I don't know... Criticise by all means, it will help them build a better game but please do so with some humility & respect. How would you feel if you had spent years working on something only to be ruthlessly ridiculed for it (before it's even been launched)? A little empathy goes a long way.