Dismantle the sniper rifle from the Crota's End raid, you will get an uncommon mission item called: Black Hammer Fragment (Or something like that). If you inspect it you will see a couple Hive runes, some of the runes look like the Tier One & Tier Three runes. Don't know if they have any connection or not, my friends and I spent about a hour in Court, nothing popped up in Tower/Planets.