Metal Gear Solid V is a big game in gameplay and in scope but let us not forget that we as the big boss is out for revenge. The thought of vengeance fuels the boss but also the game play as Boss will from time to time get pretty bloody and Kojima wants players to understand that it will stick until rain or something else gets off. The amount blood depends on how much injury Boss receives. This does have a point if you are wondering rather than looking cool. Kojima wants the player see revenge and not just see that as Boss drive. This should come as no surprise as it is a trip to madness right with Boss showing us the way.
Article:http://gamingbolt.com/metal-gear-solid-5-new-details-cycle-of-revenge-blood-mechanics-and-more
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