A few days ago the Japanese gaming press was invited to try out Metal Gear Solid V: Ground Zeroes during an event called the Boot Camp. Here are some more photos of the game in action.
On the next photo you can see the game comes with a written recap of the previous events in the saga. It seems you can read them while the game is loading.
And here are some more shots of the merchandise on display, including the Premium Packages of the game.