Board Thread:VS Debates/@comment-32295718-20170806114232/@comment-4450205-20170807153833

Both having access to the same weapons means it depends on the weapons they receive. As others have pointed out, cavemen were natural survivors, having far more combat experience and even physique, as technology has softened humans over time. However, if the weapons they receive are both modern, such as an AK-47, pistol, etc., it is much more likely for the astronaut to assess how the weapons work first and land a lethal blow.