We are actively investigating issues impacting players' ability to sign in to Destiny on all platforms. Until resolved, players may experience disconnects or be unable to sign in.
My friend has 2 more achievements that he needs to get which are the "All Alone" achievement and the "Don't Touch That" achievement, anyone who is willing to help us out then feel free to leave ur info for an invite. (P.S.) We will help you get it too, if you do not already have it.