Imagine flying across your screen no matter what your doing in the game..... The hive are trying to take control of the outposts on the moon! Or The fallen are on siege at the city walls! Or The cabal are trying to take over the tower! Or ???????? The only problem with this concept is that each server can only hold 16 players, so instead it would have to be like a 16 player 'mission/strike'. Kinds like the nightfall where if everyone does the you fail and have to find another group. There would obviously have to be some voice communication between players though