I'm not suggesting you put them in wholesale. I think most of the sub plots would fit in perfectly with some subtle tweaking. I'd go into more detail but I'm really tired
Maybe another time.
I know that, but I think it's very clear that they were put there to flesh out Chapter 2 because Konami pulled the cord.
It's not
how they are given out but
which ones and
when. There are some very strange decisions regarding this from mid-game onwards. I'm guessing again that it was Konami forcing Kojima's hand. They're not given out with consideration for what's occurring in the story, at least in terms of plot minutiae. Long dead stuff is picked up in tapes a very long time after the fact.
Again, I'll go into more detail another time.
I've only been through the game once and I haven't touched the repeat missions yet. The only area I felt lost drive was after Chapter 1 had finished. Soon picked up after.
I don't have a problem with the game, I love it, I just can't think of a good reason why most of the story beats from Chapter 2 weren't embedded into Chapter 1. They would work near perfectly as subplots juxtapositioned against the overarching story.