Rich,
I hadn't thought about the movie "Soldier" with Kurt Russell for a while, it a sci-fi film set in the future, but some of the opening training/conditioning scenes seem pretty much on the mark for how you could go about building the "perfect" soldier. Here's the first 8-9 minutes of the film with the scenes I'm talking about:
https://www.youtube.com/watch?v=c6PPmyzIBNI
Keep safe and train hard/smart, Mark H