As for the Hyper-lethal rating that was solely because he, like the Master Chief was being played by the player. Also do you honestly think that out of both Spartan Programs that the Chief would be the only one with that rating? That there couldn't be another Spartan just as combat effective as him?
I was under the impression that the Chief was a pretty average Spartan II in most regards except for is exceptional luck and leadership skills.
When I was a young boy, I dreamed of being a baseball...