I'm in fucking love with this game. I've already put more hours into it than most full games. The open world concept is going to do wonders to this series. Being able to tackle your objectives anyway you want, wherever and whenever, and the emergent gameplay that results from your actions, is simply amazing in Ground Zeroes, so I can't even imagine how utterly amazing The Phantom Pain will feel. It's like every time I play any given mission, it unfolds in a different way. Sometimes when I get caught I am tempted to retry from the last checkpoint, but then I just say fuck it to my score and either go on a rampage in order to make my over the top, guns-blazing escape from the base after accomplishing the objective, or I play the cat and mouse game after being able to hide from my pursuers.
Lately I've been taking pleasure in employing guerrilla-like tactics. I place C4 in strategic parts of the map (lookout towers are great for this), I move on to my objectives, and whenever I need a distraction, be it to save my ass or to divert enemy soldiers from my actual objective, I blow the charges up. The base enters into caution mode, but the initial chaos and confusion has saved my ass on numerous occasions already. Plus, it feels so damn satisfying.
The Phantom Pain sure as hell can't come soon enough.