Hunting is a Survival Challenge activity. Its more active and enguaging than the more opportunistic Foraging, and relies primarily on larger game, perhaps even cooperative bands. It typically uses multiple aspects of the hunted game – bone, sinew, pelts, etc. – for other things, including building more materials to hunt.
Subsistence is mainly done with primitive tools and means, and/or in order to do little impact on the habitat (leaving little trace). It is taking only what is needed in the moment – bare maintenance of health for necessity. The capital application accumulates sustenance on a larger scale for future use. This typically leads to farming and animal husbandry and employs more powerful technology and processes as it scales up.