Don't get confused ; the dlc that you find at that iso sites is like the offer that nintendo is giving to everyone who buys either copy of the game
In my case; I got conquest ; installed that DLC and at mission 7 , we're you're given the option to decide which path to take , if I hadn't installed that DLC I'd just be allowed to choose "Chose Norh" since I don't have the dlc for the rest of the chapters
Installing the dlc gives you the 3 paths , but somehow you can't choose revelation's path for now( don't choose either side) ; as the next mission after that doesn't show up