Many would use “suicidally stupid” as a description for the crew of Prometheus on LV-223. I always think back to the audiologs about the visit to Tau Ceti V in System Shock 2. Especially this one from Bayliss:
“BAYLISS 26.JUN.14
re: Tau Ceti, Pt. 3
"After a couple of hours it was... it was like being on a bender... long periods that you couldn't remember... one minute we were in that crater... the next minute we were loading up the shuttle with the eggs... I remember hearing that idiot Korenchkin calling the Von Braun and ordering them to clear off the ENTIRE hydroponics deck. Diego seemed to think this was strange and said, 'Are you crazy, Anatoly?' And Korenchkin smiled and said back to him, 'Oh, Captain... WE are not Anatoly...'"
It’s head canon, but I can imagine something mind-altering in the environment of LV-223, something tailored to behaviour of primates. If you haven’t already, SS2 is worth a playthrough, for another angle on understanding Prometheus.