Man, i must be getting old becaus i had to look up 'god modding' and 'hax'

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I dont know, he has always been pretty tough, just no very aggressive (he was a farmer, survived out in the wild like everyone else and has a pretty husky build, plus he was the one just standing there blasting zombies at the end of season two). Him not getting sick (and others like rick, maggie and daryl not getting sick) i just chalked up to them being immune. He does seem to be getting by on that fake leg a little too essily though, but i honestly have no idea how much that affects movement. Him lifting the zombie over the rail was awesome, that i would not change. I like what they have been doing with herschel the past two seasons.