Not News: Robotics company doesnt know how to make internal combustion engines.
There are dozens of ways that automotive engineers over the years have decreased the decibel output of internal combustion engines.
None of these improvements go into generators. Ive watch some youtube videos of the 'Mules' and it looks like a robot with a generator on its back.
They're probably using generators because noise was never a stipulation in the design parameters. What a bunch of idiots. Cancel a program because
it does something you never stipulated it shouldnt.