Whoa! My mind was just kind of blown. I just realized there is an awesome link between Ground Zeroes and Guns of the Patriots. It's a song called "Here's to You" (
http://en.wikipedia.org/wiki/Here's_to_You_(song)). In Ground Zeroes it's featured in the intro of that game in its original version, while in Guns of the Patriots it was presented with a very solemn rendition that was rerecorded by Harry Gregson-Williams and a vocalist. So, does that mean the Metal Gear series is really meant to be Big Boss' story and not Solid Snake's? It seems very symbolic and shows how intricate the storyline of Metal Gear can be.
Ground Zeroes:
https://youtu.be/elMikUGFfqw?t=2m34s
Guns of the Patriots:
https://www.youtube.com/watch?v=8ryT4hrnOHg
I wonder if Dan knows this.