- The lack of plot
- Repetitive missions
- The bullshit chapter 2
- A barren open-world
- Little cutscenes
This is the worst MGS game, and it doesn't deserve the highest scores.
The missions are hardly repetitive, as you have so much gameplay options and mechanical freedom. It's easily the best playing MGS and that's what matters most to me.
I also like the more barren open world. It fits the setting and prevents the filler and bloat of other open world titles. I also play games to, you know, play, instead of watching cut scenes. The game still has a fair share, but I'm glad I'm playing more than I'm watching.
Also, if you want to know why it gets such high scores, you could start by reading the reviews. That Guardian review is a good one to start with.