sorry I'm not a blind fanboy, I guess..
Even though the game changed little since 2012.
https://www.youtube.com/watch?v=L7PfWfw1Xao
I mean look at this and tell me how much it changed from the complete version we see now? Very little. The entire hospital intro was finished back in 2012 so what were they doing for the next three years? Oh wait, Ground Zeroes which was another glorified tech demo and even more of a bait and switch by being more cinematic and more fun then the actual full game itself.