I am playing on Steam.
I am going to play MGS:PeaceWalker (on PS3), then Ground Zeros (PC), then Phantom Pain (PC). But I will be missing out so many daily konamin rewards, like those real money coins. Konami states that you need to reach some point in the game (main campaign I assume) before getting daily rewards.
So the questions are -
How far into the game? How many hours or completion percentage?
How many spoilers are there?
I haven't played Ground Zeros yet, I know there is an option to upload/download saves whatever. Can I utilize this option later, if reach "reward point" now?