на сайте alien covenant вот что пишут
http://www.alien-covenant.com/news/alien-covenant-set-visit-report-reveals-clues-shaws-fate-and-lot-more
Paradise may have housed a HUMAN race who worshiped Engineers
More and more evidence continues to surface suggesting that Paradise is actually another planet that was once populated by Humans but was destroyed following displeasure of their Gods (the Engineers). The set visit accounts a number of Engineer style monuments, as well as a sacrificial area, paired with a ceremonial blade.
вполне возможно куча трупов это человеческие ,а не инженеров