This is a great example of what I like to call a one-man-survival-team, aka nomad. He carries everything on his back and knows how to keep himself alive. Nomads are typically untrusting and try to steer clear of colonists. Rarely, nomads will travel in groups known as 'trains' and will trade resources. Rarer still are trains that will assault a camp/settlement and either loot it or become a colony itself.