Beta is apparently 4 story missions, a strike (likely the same one from alpha) and 4 mp maps. Sounds like a shitton to do.
Btw target currently has a 15% off deal for electronics, to celebrate the first year of their cartwheel app. You have to have an account (
www.cartwheel.com ) and it's only good through tomorrow ( Monday 7/14 ). It will work on consoles. Got my ps4 earlier today at a pretty fair discount (saved $82 combined off the cost of the console plus 2yr service plan plus 3mo ps+).