Hideo Kojima talks about Kiefer Sutherland, characters and cutscenes, and how MGSV will use new ways to tell a story.
Several characters, including Snake, go through big changes in the game. This is the reason for the subtitle ‘Ground Zeroes'; it’s a turning point for multiple characters that appear in the game.
In this game, Snake is a different character than he was before, his personality has changed. He won’t be talking as much as he did before. He is a darker character who doesn’t share his feelings. A lot will be conveyed through facial expressions or grunts, instead of Snake having to explicitly communicate it through words.
This is the reason they went with Kiefer Sutherland, who is able to give them this subtle performance, and so far they are very pleased with the results. Kiefer has been successful in conveying what they want Snake to convey through his expressions.
Kojima always says 70% of his body is made of movies. (Old) movies are an inspiration to Kojima, he often studies lighting and camera work that is used in them. But in this game, the storytelling is mainly focused on player freedom instead of cutscenes, like Kojima has done before.
To watch the entire interview, follow the link in the source.