The actual story is they had never seen an airplane before and they saw this land and people came out of it, they worshiped it hoping it would return. My Father was a marine (Navy Corpsman) and said the headhunters were used to kill Japanese and paid them when they brought in their heads. As far as the WW2 map, it sounds like will be a paid module. not a free update. I thought what you were excited for was the two F-1's taking off in front of him, he deliberately mentioned it as a teaser.