i would like to see a mix where we have a linear storyline that takes places over the 10 years / 4 discs, but the game itself should also depend on how we interact with the world. If we throw 100 guardians at an event because we just are always online bungie better be sending us waves we really have to try to work together to defeat sometimes. Assuming you get 100 levels different levels of enemies should attack in multiple areas. In the most hardcore areas you might not typically see a level 15 w/e but in a level 15 area you should sometimes encounter a level 50 something that you simply need to run away from, get more help, or hope someone passing by can save you. The threat of being out in the universe with just a few people should be very real. Also, as en enemy whos taken over the planets intelligence is clearly there since the enemies have their own ranks why not receive updates on the enemies ranks and things going on in their worlds as side stories. Not just events that are fighting. What about an event where we show up to an NPC titan whos gotten word that such and such is forming a new weapon using w/e from inside planet w/e and a team of xy and z need to go take care of it.