In this thread people who are actually quite sophisticated consumers of marketing, fiction and theatrical misdirection feign ignorance and ignore the rest of the campaign including the tv spots and other material that literally told you to question the validity of the narrative.
The campaign was literally called #huntthetruth
That is really, really misleading.
The Hunt the Truth campaign gave us two sides of the same story and was entirely built around making the audience question the loyality of the chief while at the same time building up Locke as his righteous hunter. It built their rivalry up, making us choose sides, giving us different outlooks on the same events, making us wonder which is true.
Turns out: None of them are true. The twist isn't that the events of the game played out differently than in the trailers, the twist is that they didn't happen at all. The twist isn't that Locke's relationship to the chief is different to what it was made out to be in the trailer, the twist is that there is no relationship. The twist isn't that the Hunt for the Truth leads us to a surprising revelation, the twist is that there is neither a revelation nor a Hunt for Truth.
It would have been great if the game actually played with these expectations and turned them on their head or used these themes to tell it's story. But it doesn't. It simply ignores them.
TLDR: You gave us a mystery full of misdirections to be excited about and then revealed that the mystery itself was the misdirection because there actually was no mystery at all.
And that is a big problem because that was the central messaging of the marketing campaign. Halo 3s Believe trailer campaign didn't actually fit into the game's story and that was kind of disappointing, but thanks to all the other marketing material, press releases, gameplay trailers, story synopsis, we still knew what the game was actually about. However, with Halo 5, everything you talked about regarding the campaign and story revolved aroudn that one central theme.