Even though you are in the sS Group, you aren't automatically in the Clan. To join the clan, you must go to Bungie.net. Once on Bungie.net, sign in to your PSN account. Then, go to the groups tab on the left of the screen. When you see your groups, click Steak Sauce, and choose "Set as Destiny Clan" beside the Interact and About options. Once enough members have set sS as their in game clan, the clan tag will show up under your name when playing in game. For a tutorial on joining clans, watch this video. https://www.youtube.com/watch?v=0hQv-iAYu08