Fred started jogging, pulling ahead of the others. He was definitely following a trail now. Mendez could see him looking down every few meters as he went. And then he broke into a run.
	This was always the moment when Mendez fully appreciated just how different a Spartan-II was from a regular soldier and even from the Spartan-IIIs. He’d seen it hundreds, even thousands of times, but it was still sobering to watch a human being in a power-assisted suit accelerate to nearly sixty kilometers an hour and keep going. Mark, Olivia, and Ash hung back to wait for Mendez. Tom carried on, starting to fall behind Linda.

Glasslands Ch 8