Since there is no official, shared canon or lore associated with the game as of yet, the introduction of some background and insight is, at least to my perception, essential. In large because I wish for us to conglomerate all of it and distill it into one piece of reference where we can all work from and within, essentially a paragraph at most for each thing, be it a term, location, person, corporation, and all the rest. Leaving too much ambiguous in this case with so little background I see being more of a tripping hazard than a novel plot element; my advice would be to just leave aside anything that would play one's hand and hint at any number of things instead without outright saying it.