Several pieces of Titan chest armor that I see have a curious cosmetic feature: a single blade shaped metal device mounted to the back and extending over the left shoulder. I was just wondering if anyone knew what this thing is supposed to be in the game. I'm sure it has some function (though whatever it is, it has nothing to do with gameplay). The thing has some black hoses running through and from it leading me to believe its function is either chemical or electrical in nature. Anyway, any thoughts on what it's supposed to be?