METAL GEAR SOLID + GAME OF THRONES/ASIOF Crossover challenge

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September 1st marks the end of an era, with the release of Metal Gear Solid V: The Phantom Pain. To commemorate this auspicious event, I propose this challenge to bring together these wildly different canons and make something out of it.

PROMPT: After Big Boss dies at the end of MGS4, he finds himself de aged back to his late forties on Mother Base with all of Diamond Dogs intact in the middle of the Narrow Sea. Has he found his "Outer Heaven" or something more?

From there, the writer has free license to do as they will, within reason, of course. I would prefer a Big Boss/Rhaella Targaryen pairing, but it isn't up to me, now is it?

Hope to see some submissions soon! Good Luck!