Starting with Fallout 2, though, the world is pretty much a post-post-apocalyptic one. And the level standards in the NCR proper are pretty high. They do seem to favor melee weapons over guns. And aside from Caesar himself, they seem to rely on tribal level of medicine - only healing powder instead of the abundant stimpaks. And after Caesar's death, the Legion is bound to become just another band of bloodthirsty tribals, particularly if led by the psychopathic Lanius, whom Caesar designated as his successor for some reason.