Okay, let's see...
1) The verb tense issue. Someone (I can't really remember who, but he was in the IRC Chat) already pointed that out to me. I'm planning on giving it a look as soon as possible (Probably tonight).
2) It is set before the original FoE. It starts around 40 and ends around 30 years before. And about the "Saving all of the Wasteland" thing, he was not alone, but his friends either died or abandoned him along the way (Or so he claims). However, I can't guarantee it will sound, as you said, believably.
3) These are the "Normal" Enclave, and I'm still not sure If I plan to use the PH view of things entirely, since It's not still finished. But surely lots of things, like the Hoofington beeing a dreadful place, and (I still don't know, since I did not asked permition yet) a possible quick appearance of Rampage. I admit that this part is still "in construction". Heavywings, the Enclave historian (And maybe a Council member, but I'm still not sure about it) isn't the normal kind of Enclave. How do I say that....he does share the "Pegasi were dragged to the war and suffered because of the other ponies, so they have all the right to abandom the other ponies" point of view, but he's convinced that History is something that should be analysed by all points of view. I don't know if you understand what I mean (If not, feel free to ask more). Oh, and I think it is a little early to assume Ace lost, since he is still alive (For now at least...)
4)I agree with you so much, you wouldn't believe. Seriously. Stables ARE extremely cliché (I think that's the word. I mean overused). But, unfortunally, I can't avoid this Originality Nosedive. And I must agree (again) with you, that every writer wants to "shape" the next LittlePip. But that's something most of us can't avoid. I mean (And, strangely, I was thinking about the phrase I'm about to use, a few weeks ago), stories are written about the great, those who made something undeniably amazing. Of course, there are exception, but that's what I think. Although I'm still reading the Project Horizons (Chapter 34), I can't agree nor disagree with your comparison BJ and LP. But I won't discuss it here. And about Ace being a "badass wastelander", he is, most definitly, NOT. Not until it gets close to the end, at least. I don't want to spoil it, but he'll be like a "Companion" of the Fallout series in the beginning. (If you really wish a detailed explanation, and you're not afraid of spoilers, send me a PM asking about it
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Don't worry about discouraging (Is that even a word?) me, actually it really helps when people comment/criticize like you did. If I have anything to say at all to you, it is "Thank you"