Before you buy TTK - account sharing Must reads [url]https://www.bungie.net/en/Forum/Post/155033633/0/0[/url] https://xbox.uservoice.com/forums/251647-gaming-achievements/suggestions/9845433-xbox-360-gamesharing-terms-should-be-the-same-as-x Bungie is not legally bound to game share across multiple acounts, so they haven't... They have just decided to say nothing!