Watched today's livestream. They were talking about fireteam scaling. Touting that you can be level 2 and play with level 4 friends. Enemies will scale to the fireteam level. The level 4 players get T4 gear. The level 2 player gets T2 gear. My understanding it is that the content will be as difficult or possibly more difficult for the L2 player than the L4 players - and yet the L2 player will get lower level gear from the event. If doing content that is scaled to T4 then T4 gear should drop for everyone that completed the event together.