This was sent out via a press release this morning: [quote]Deej (Bungie Community Manager) will host a livestream straight from the studio with Matt Sammons (Bungie Lead Designer), along with community member ProfessorBroman. They’ll be playing a brand new co-op Arena activity set in the Prison of Elders, where teams of three players can take on waves of increasingly difficult enemies to earn high-level legendary and exotic rewards. You can match-make with other players anytime, or form your own Fireteam to take on higher difficulty challenges with even greater rewards.[/quote] It's effectively a horde-mode style arena for up to 3 players. Yes, there is match-making for those concerned. Seems you get better rewards by taking on higher difficulties with a pre-made team. Time to make some more friends I think. Share your thoughts and opinions below.