Looking at this from an unbiased point of view, Ryu has little spikey shurikens, maybe a little damage, MC has his shield, same with the sword, it certainly aint gonna cut through tthe MJOLLNIR armour, no way, and theres the shield. On the other side, Master Chief is faster, stronger, and in most aspects better than any other human, and that's jsut without the suit. He gets snipers, energy swords, not to mention homing rocket launcher. Flashlight to see in the dark, various rifles, of which you should know that not even a ninja can dodge bullets. Then there's homing thigns like the needler, and various other technological advantages, such as the scorpion tank. It may be difficult to hit him, but he aint gonna be able to get in it, so MC would be safe. Also there is the ghost, simply run him over or gun him down, the banshee, which Ryu wouldn't have a chance against, couldn't even hit. The main point is, no matter which charachter you prefer, realistically, Master Chief would win this fight everytime.
