At the very least, what's the gun mount made from?
That's the thing. Overall athletic prowess cannot be determined from one test alone. The tank toss is one-dimensional. It demonstrates shoulder flexibility and imperviousness to back strain. But how far is the tank thrown at the end of a long day compared to early in the morning? Terminator would still be going strong, while the Green Man would be nowhere to be found. Total performance is more than an adrenaline rush: staying power, endurance, completion of mission, that's where it is.