All kidding aside, I know the pain of not having gally. I just found groups that didn't care. Took longer, but I found them. Now with the update, there's a ton good launchers. Get a good one with tracking and do some Crota raids. Either find a gally or a Hunger of Crota. I was never turned away by a group doing Hard Crota when I had my HoC. Keep doing hard raids, nightfall, and PoE until you get it. I've been seeing it drop a lot lately, but never from a strike which you seem to play the most.