Maybe chapter 1-2. Side missions. Earth plus 1 planet. 1-2 strikes. Maybe 1 raid. And a few pvp maps. Basically a little of everything. The idea of beta is to test the systems. So theyll want us to do just about everything. But just the tip of the iceberg that is destiny. I wouldnt be suprised if theyres no raids though. And maybe no story line.