Also, it can't be her because the Pegasus Enclave has been keeping a cloud curtain to keep the pegasi from realizing that the wasteland isn't so bad that they can't save it, and to grow enough food (which they can do on clouds now), so it's never sunny.
Well these two other guys got it before me, so I'm just going to give some advice, GO READ IT.
And if you haven't read Fallout: Equestria, then GO READ THAT FIRST.
It's the one that started it all, and we have thus seen a huge influx of fanfics, about or based after THIS fanfic.
To list a few: Project Horizons (of course), Murky Number Seven, Pink Eyes, Heroes, New Beginnings, and much more.
Seriously, these are the two most well written fanfics I have ever had the pleasure to read, I would even go as far as to say that these two fics have done better than other actual published novels I've read.
Since you've asked: "Pink Eyes" is better. Reasons: a good book has a story arc, that has a start and an end, and the whole book serves the purpose of bringing the story from the start to the end, with some overall idea that combines all into one. In Project Horizons, the story should have ended ten times already, yet Somber keeps it going, applying the least justified plot devices, bringing the whole story to the point of nonsense. Currently, Somber can introduce anything, from McDonalds clown to the Three Piglets, and it will fit right in. There is no overall idea that can make the book whole. It's just a journal, that will go on and on and on, like Santa Barbara TV series, which is kinda weird, since TV series usually bring money, and PH does not. The character of Blackjack started as a "stupid shooter", clearly in contrast to Littlepip, yet Somber could not keep the character on, neither let it evolve, instead, switching between behavior models, without thourougly analysing wheter such models can even exist with such a kind of character. For example, Blackjack's guilt rants are totally inappropriate considering her (initially) lively persona. Having read the book right until the "iron pies" (after that I abandoned it), I've got a strong impression that Somber aims to write The Most Long Story Ever Written in English, by any means, without considering wheter there is a demand in such a long story in a first place. Or probably, he just can not stop - it is called a graphomany.
For the most part I disagree. (I also disliked Pink Eyes. There where a few really strong moments, but not enough to really excite me.) I believe the story is meant to feel like a journal, hence the first person view point. Blackjack's character changes based on what is going around, except the beginning, which she felt more like "Littlepip2". (However that was changed, as he re-wrote the first few chapters)
Her emotional rants also are due to things that previously happened, and I've yet to see a moment when she just decides that "Hey this seems like a great time to rant!" (I'm also all caught up on said story, except the most recent chapter, been busy)
As a practicing author myself, I see no flaws with PH. Other then it does occasionally move a bit slow. Sometimes things are given far too much description.
But to each their own. I find this story to be one of a "journal" feel, and I like that. It lets one story be multiple different stories, and eventually they all tie together.
And one last note, if he makes the longest story ever I'll be amazed. He is somewhere near 2,000,000 words I think (Don't quote me on that), and the longest story (which is still going) is at about 3,500,000. Would you believe said story is actually a Super Smash Bros. Brawl fanfiction? www.fanfiction.net/s/4112682/1… (I'm gonna start reading this sometime. It's the longest story ever, how can I resist?)
Amazing the things people write about, and so many others love it.
The main character of Fallout Equestria: Project Horizons, along with the original Fallout Equestria one of the most popular (and currently also the longest ever) MLP fanfics. And I gotta say that given you don't know her the colors are awfully accurate (aside from that brown-ish stripe in her mane). Nice work.