Here's what you need to be a War Machine in combat: god upper body strength, a strong core, flexibility in the way your lower and lower body transfer power to each other through your obliques, speed, strong legs, good ballistic power, explosive anaerobic performance and great lungs and endurance. The War Machine workout delivers all your requirements. All you now need to do is go through the sets and go through the reps, rinse and repeat.
Extra Credit: 30 seconds rest between sets.