Played about 4 hours of the game and just got to ACT II, which is where I feel the game REALLY starts(ACT I we've seen since forever).
I will say that I was fucking disoriented when the game started, and MGS is my favorite gaming series. I was actually frustrated but obviously stuck with it. Shit going on all around you..it's a war just like we've seen in trailers. Simply because of the nature of the events going on around you, you'll probably want to play it like an action game rather than stealth. it took me a good second to get used to the controls, and to know how to read all the info the game has on it's UI.
And then...it just clicked. I was sneaking around just like the old games and it is much more intense when the PMC's and the militia are going crazy all around you. It's different seeing someone else playing than when YOU actually get to play. I'm jealous of those with 5.1 or 7.1 surround sound systems, this game is gonna rock your house.
So many weapons, so many different ways to approach any given situation it is amazing. After I got the hang of things, I used my tranquilizer gun exclusively for the rest of ACT I while racking up crazy amounts of Drebin points to save for later on. Awesome Awesome Awesome.
It's good to have the king back.