You know, while I'm not a real big fan of halo either (People claiming the plot dealing with ring-worlds is completely original haven't heard of Larry Niven apparently), I couldn't stand Half-Life 2's narrative device in Gordon Freeman. I mean, I respect the half-life games and all and what they did for the FPS genre as a whole, but there was just something about playing as this mute, genius physicist-turned-messiah figure that rubbed me the wrong way.
Nothing came off more nonsensical to me than having conversations with various people that quickly turned one-sided because for all the scientific knowledge and sea-saw building skills Dr. Freeman possessed, he couldn't say so much as a "I'm fine" to people trying to talk to him.
That being said, I'm pretty sure Master Chief is really just Vin Diesel with a voice modifier under that helmet. I mean, have you head some of his lines?