>>79116115it's basically MG3 and improves on both of them. Nojiri's a bit of a sadist though. there's an interview where kojima talks about the difficulty (minor spoilers for one of the fuckier sections). Spidermom never got better than terrible on any level.
https://www.tumblr.com/thearkhound/614903821161873408/metal-gear-ghost-babel-konami-guide-interviewI've done some more looking around and the reception of the game is basically universal acclaim.