The Division will have 26 campaign missions at launch

Players data-mining The Division have discovered a total of 26 story missions, along with a new enemy faction.
Tom Clancy’s The Division is now available to pre-load on PS4, Xbox One and PC, and fans haven’t wasted any time digging into the game’s code.
Posting on Reddit, players have discovered information relating to story, missions and loot.
According to the leak, The Division’s campaign will consist of 26 main missions, one of which can be played in three different ways.
Some of the data obtained is listed as “DLC01”, hinting at either the game’s three expansions or free updates after launch.
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The data also hints at a new faction known as “The Bratva,” a Russian group not present in the main game.
All of these details should be taken with a grain of salt though, since some defunct details may still be present in the game’s code after so many years in development.
The Division will be available for PS4, Xbox One and PC from tomorrow. Servers will go live at 2pm GMT later today, if you happen to have an early copy.