IC:
Supplies? Examus had enough.
Energy? He didn't waste that much in the first place, so that was fine.
Prey? In front of him. He continued, following whatever tracks and telltales were available. Ever since he'd been trained as an ODST, he's been trained to hunt, albeit in a different manner than that he was doing now. The ability to know where to go was very powerful - when, where, why, were things that you'd learn in both english classes and in classes that teach you how to shoot guns and fight with knives.
The rise in height suddenly changed as he reached a flatter area of the mountain; from his vantage point, he could see the desert zone in front. For the most part, he wasn't weary; bases of the UNSC could be set up and fortified in seconds, so in a way he wouldn't be trekking into absolutely nothing. The same with the Covenant. But the one thing that annoyed him was the fact that, in the desert....
One couldn't track heat signatures.