We get alot of missinformation about them, the director said they were bad bloods/Outcasts but others simply donāt says this.
Maybe Berserker simply went there to hunt and just for that(we know he enjoy it just too much compared to the others), and his clan were simply made of Yautjas that shares this twisted taste(they also were outcasts among their people, mostly because of their tools).
Necaās description is mostly this, but we canāt hold as complete truth, but mostly as a overall loosely canon.
āThe Berserker Predator is the ultimate hunter. Born with superior physical abilities and intelligence, he was the youngest Yautja to ever kill a Xenomorph [Alien] and reach Young Blood status. Considered a prodigy among his clan, he quickly rose to almost legendary Warrior status; achieving more kills than any Predator of his generation. As a Predator of the Honored class, Berserker Predator became a leader of his own hunting clan consisting of only Himself and two Young Blood Predators: Tracker Predator and Falconer Predator.ā