Well it seems it was eight years ago that I came up with the idea and still no-one has "already done it". So with the help of the Unreal 4 engine I am trying myself. Head over to Astonished By Design and see how mapping the eyeball rotation to the mouse/right controller stick and having the head automatically track the direction of sight which consequently makes the eye change it's position in 3D space, makes the basis for the "First Person Simulation".