Hopefully the story is extremely long but there are heaps in mini missions/objectives along the way!!

Hopefully over 100 hours. :P

They are saying you wont' get done everything in a year, will so much to do. There is a lot of exploring to be done, that's where you will find the exotic weapons and gear, and enemies we may have to come back later to beat because we are not strong enough. They are putting out a big dlc every year and every 2 years a new game disk can't wait