I think you have some mistaken beliefs about the linked ancient sport, and modern MMA. The goal is a submission, that is, to put the other person into a positio

I think you have some mistaken beliefs about the linked ancient sport, and modern MMA. The goal is a submission, that is, to put the other person into a position in which they have to submit, or they risk injury. So I find your "successfully broken another mans neck" question to be a non-sequitur. Breaking someone's neck is not a desired outcome, nor is it particularly likely. I practice Brazilian Jiu-Jitsu, and have sparred a decent amount of MMA.