How many people here think that 343's handling of the Forerunners ruined the mystique of Halo?
To me, while there were some neat stuff done with the Forerunners under 343's tenure, it destroyed the mystery behind the Forerunners, and by extension, made the series more like every other sci-fi story. The overall mystique of Halo rested on these enigmatic aliens. Who were they? Where did they come from? Why did the Flood invade them? What's their relation to humanity? Are they really our ancestors? Bungie wisely left these questions unanswered so that the fans would think up their own answers, and that left a certain mystique to the race whose tech was at the very heart of the story. Halo. A superweapon developed by a long-dead race that can annihilate all life in the galaxy with a switch. And these Forerunners who left them behind are just as mysterious as the weapons they constructed. There was religious imagery, themes, and allegories, which gave the series a sense of wonder and excitement, and the mystery of the Forerunners was at the center of it.
But now we know who they are. They look like the children of Voldemort from those Harry Potter books. They were your typical space fascists with a touch of tree-hugger ideology who were pissy that their makers favored humans over them, so they slaughtered their makers, the Precursors. The surviving Precursors, as a final "fuck you" to the creations they rejected, created the Flood as revenge, and the Flood proceeded to lay waste to the Forerunners' galaxy until Halo destroyed both sides.
Oh, and the humans weren't Forerunners, so all that guessing as to whether or not they were Forerunners was nothing, even though in the first Halo game, 343 Guilty Spark describes human history as "a record of all our lost time!"-meaning that the Forerunner and human species are somewhat related, and that the humans are the modern descendants of the Forerunners, down to the point where 343 Guilty Spark even tells Chief that "You are Forerunner" by the end of Halo 3. That truth had such consequences behind it that it is the reason why the Covenant leaders want humanity dead: the moment their people find out that living descendants of the Forerunners are among them, they lose all power, and they had to do everything in their power to stop that from happening. The fact that the lead Covenant prophet who wants the humans dead is named Truth, and he's lying to his people about the fact that they're killing the children of their gods, was a tragic irony that elevated Halo from a mere action series into a poetic tragedy.
But no, now the Prophet of Truth was actually telling the truth, the Forerunners hate the humans and fought them. We meet a Forerunner general in Halo 4, and they totally hated humans and killed them in battle. If the Prophet of Truth found out about that and revealed that to the general Covenant public, he would actually be, as his name suggests, a prophet telling the truth. Which is kinda hilarious, now that I think about it. The biggest liar in the entire series was actually telling the truth all along.
Now that the Forerunners are revealed, warts and all, they, and the mystique they exuded throughout the entire series, is lost. They're just your standard fascist pricks with environmentalist leanings, who didn't eat meat, which is ironically enough what Adolf Hitler was. For all their power and grace, they're just as petty as Cain was from the Bible, killing the Precursors because the latter favored the humans over them, and the mystery of the Flood? Gone too. It was just a final "FUCK YOU" move by the Precursors to the people who killed them. All the shit in this series started because the Forerunners were pissy idiots who killed their makers because their makers favored another creation. This whole saga was started because of the same petty jealousies that surround us in our daily lives. It's no different from any other soap opera story where people kill each other over narrow shit like jealousy and misunderstandings.
Halo as a series had so much potential, looking back at it now, but that potential has been thrown aside. What was once a mystery draped in religious leanings has now been secularized into a simple power struggle between a father and his two sons. The father favored one son, so the other son got jealous and killed his father, and as the father died, in his last moments, he unleashed a plague that wound up nearly killing both of his sons as a final curse against his killer.
I know there's plenty of people here who are fans of Greg Bear's Forerunner trilogy, I myself am a Halo 4 fan, but I'd be lying if I said that it was all OK. What they showed about the Forerunners, in my mind, is what the kids today would call "TMI"-too much information. Some mysteries are better left unsolved to give the story a sense of wonder, and just because you can solve a mystery or give an answer, doesn't mean that you should. I mean, heck, people demonize George Lucas to this day for making the Force into a blood power, saying that midichlorians destroyed the mystery of the Force. 343 Studios and their story-writers did something similar, destroying the mystery of the Forerunners by telling us everything about them and answering questions that best left unanswered.