None, Bungie needs to get passed the whole boss thing and go towards more epic combat situations...
I want there to be a huge big ass, take to the death, all out the end, serious battle...
Not Bungie's kind of battle with tiny skirmishes, but I want there to be a final stand against all the covenant...
Think about having one huge battle to end them all, one quarter of all of New Mombasa being the battle field, ODSTs dropping in from orbit all around your position while you take on 45 wraiths, 77 banshees, 4 scarabs, and an endless horizon filled with enemies, all while alongside your own armada... Think about a battlefield like the one in the Believe commercial...
Bungie is becoming more diverse with ODST and are becoming better with their ideas, they are heading towards a free roamer with ODST, they need to think outside the box and go towards more head on combat if they are to give us such a huge playground...
While I traverse New Mombasa freely to do so, I want the streets beneath my feet to be drenched in covenant blood and the air filled with debris and plasma soaring above my head...