- last post: 01.01.0001 12:00 AM PDT
I believe that the Prophets as intellengent as they are deciphered the Forerunner language, and found out many things about their history because they located a abandoned Forerunner world. From there the Prophets gathered all this technology that the Forerunners left plans to by mistake I would believe, that helped them build their energy weapons, shields, armor, and ships. After that the Prophets started attacking and taking over races with this technology, and I believe that all the Covies except maybe the Brutes were once good before the Prophets made them fight for him, but thats just a theory I came up with when I went through this question in my head.