>Why did the engineers create humans and then change their minds and want to kill them all???
Because humans are one of their biological weapons that escaped.
The movie is called “Prometheus” based on the Greek myth. Prometheus stole fire from the gods and gave it to humans.
The first engineer who killed himself on earth WAS Prometheus. He stole the black goo and released it on earth. Humans are the result of that. Hence, to the engineers, we’re just another weapon like all the other monsters.
>If we were supposed to meet our makers, why did all the cave maps point to some random weapons lab??
Because that IS where we were made. See above. We’re weapons.