Great question, I love MGSV, best game of this gen for me easily mainly because it is the best playing TPS ever made, mechanically it's perfect.
I am still early but I can say U4 feels amazing to move and surprisingly shoot in a way that impressed me like MGSV and RE4 way back when. But obviously U4 doesn't have half the abilities snake has so the actual gameplay isn't as deep. mechanically though, yeah it's in that area, it feels so good.
The 30fps has had zero impact on me. Normally I never cared about that stuff, this year I got a gaming PC so I have enjoyed 60fps gaming. I played ratchet last week and it was noticeable drop for a few hours but the game looked and played so good it didn't matter. The same for this game, I'm too busy being in awe of everything to notice the frame rate.