Frankly IGN was being generous at that, however I'm shocked they didn't give it a 9, because well It's IGN.
What people have suspected to be the case, is exactly what this "game" is(using the word game loosely here). It's literally nothing more then delivery man the game, that's all you do.
Well atleast the visuals look way better then in the trailers, so I guess it may appeal to graphic whores.
I feel sorry for Kojima fans, this is going to disappoint most of them. The few "game" game mechanics that do exist, does nothing but slow down progress, which would be fine if there were rewarding aspects sprinkled throughout, but there Isn't(you are literally just doing fetch quest type quests, to unlock more/the next fetch quests).