For the past few months I have been making a game. Its a co-op action with custom characters which was already an ordeal in itself. On top of many many things I want to experiment with I wanted exactly this. I am longer doing this. It causes so many issues just to implement and when we thought we got it working another twelve things went wrong. Now what i was doing was on a tiny tiny scale compared to destiny... And Destiny can barely support two people standing in the same place without something going wrong, this will likely never happen without a huge engine overhaul which will also never happen.