The second point is totally understandable - implausible indeed (just like Big Boss having the option of being half naked in Peace Walker and MGS3 hehe) However I think that the first point doesn't hold ; MGS5 is 18+, making it not appropriate for kids anyways - just like porn or violent movies.
It is costly... i have purchased those games over nad over. From ps1, to ps2 editions, to the subsistence and other special edition... to the HD collection on ps3, to HD versions on Vita, then my special edition of MGS4 and then re purchased MGS 1 on PSN store... holy crap.. lots of money. But they are worth it. MGS 3 is…
I dunno ... the way it was phrased during the talk made it sound more like Ground Zeroes is a prologue, and Phantom Pain the actual meat of the game - similarly to the Carrier and the Plant missions in MGS2. They were even playable independently from each other. Also - Wouldn't it make sense for Haytier to voice ... Liquid…
But Solidus died during MGS4. If it's a fourth clone, that would be yet another retcon of the Les Enfants Terribles debacle. If memory serves, Big Boss had the use of both of his arms during the first Metal Gear. I love Kojima, but it's getting harder and harder to watch this man take a piss on everything he's worked so…