Even though MGS was my favorite game I never really like MGS5. Any suspension of disbelief was ruined with awkward lines like, "You're a legend in the eyes of those who live on the battlefield."
1. Because of the change of voice actors, I literally could not tell who was speaking at any given time. Everyone sounded the same.
2. None of it was believable, funny, interesting or relevant. Peace Walker had a very similar concept in terms of storytelling (through tapes) and gameplay (base management), but was infinitely better. I just really did not care about any of the tapes in MGS5. In PW the tapes were funny and interesting and you actually learned something.