HOWEVER (and it's a big however), the every thrifty and innovative Marines have figured out a way to haul heavy loads over rough terrain, using a very mature "technology" that doesn't require batteries, replacement parts or even gasoline. Yup, they use mules.
Which makes me wonder - if mules can effectively accomplish the mission, is the BigDog really necessary? Yes, BigDog is cool. I love it. I've watched this video several times and it gets me all excited. But the real question is, is it better?
Maybe it is. But frankly, that's likely to be a matter of opinion ("better" being a rather subjective word, don't you think?). And clearly, mules are the FISTy option.