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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Everything but the story mission number seems legitimate at launch. 22 story missions seems so few. We had access to 5 in Old Russia and there seemed to be the potential for more with underground areas being occupied by ??? enemies.