I'm not sure if Master Chief would be jealous, but the closest comment that I got from him was "Excellent work! Keep it up soldier..." (Steve Downes, voice of John-117) He had a huge smile and gave me a thumbs up with a courtesy wink. Shook hands and a nice pat on the back. Those words alone put a huge smile on my face for the rest of Halofest 2011.
I'm hoping, one day, to be able to go to Comic Con and meet everone there.