Title says it all - from the Destiny blog
[url]http://thedestinyblog.com/2014/07/27/report-destiny-will-have-22-story-missions-11-crucible-maps-6-strikes-4-exploration-areas-and-1-raid-at-launch/[/url]
English
#Destiny
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4 exploring areas - earth, moon, Venus & reef ? That's it ? Prepare for activision nickel & dime dlc. Be willing to bet all that is probably about 1/2 what bungie built/made outside of the story missions.