I love the Fallout series itself, but have yet to read FO:E. It's a whopping 600k words in the original alone.
Yet one of it's fanfics is longer. But yeah, the only things of the top of my head that are longer are Homestuck and the hardback guide to Fallout: New Vegas.
Of what? Your Fallout fiction? I'll get around to reading it, I swear, but I'm playing MVM right now.
NO! I was talking about my Dues Ex fanfic in the Fallout section! (Though I am actually doing one at the same time as this.) - - Auto Merge - - 1-5 minutes remaining, though I will not post a direct link to it due to its bloody nature, not worth the possible trouble with the mods. - - Auto Merge - - And it is up! If you wish to see it, just look up Fallout Equestria, the Tale of the Soldier in the search in Fimfiction and make sure you can see mature. Or have the link again to the side stories, it'll be easy to find: http://falloutequestria.wikia.com/wiki/Fallout:_Equestria_Side_Stories
That wasn't a grammar error. I moved the topic to the General Discussion subforum belonging to the Fanfiction subforum, thus Fanfiction's General Discussion.