The Right Sponsor
If there’s anything we’ve learned from the Hunger Games it’s that ultimately, it’s not about strength but about strategy and presence of mind and this person seems to have it all figured out. Since most tributes would do anything for some food, this OP would start by making McDonald’s their official sponsor.
You may think it’s so that they have plenty to eat but no, that’s not it. Instead of eating the big macs, they’d use it as bait to trap the other contestants and every time they make a kill, they would look up at the sky, give a thumbs up and whisper, “I’m loving it.” Evil genius!