The reason why it's in 3rd person like it is it's because Kojima suffer 3d sickness like most japanese players. A lot of Japaneses people just can play FPS and a lots of 3D game because of this issue. 3D sickness is cause when all of the reference points is shift at the same time too quickly. I think it's a misconception that Japanese doesn't like FPS it's just that they can't play it but there's a lot solutions for it and I don't understand why company like Nintendo which aim at casual gamers doesn't put more efforts to implement it.