After playing Halo 4, did the Forerunners come off as weak to anyone else? Cortana is considered an advanced/evolved Ancilla by the Didact, which implies that Forerunner Ancilla aren't that different from Cortana. A single nuke can completely destroy Didact's ship. Forerunner weapons didn't seem all that strong. Didact was much shorter than 15 feet. A single shot from a Mammoth rail gun can destroy massive Forerunner structures. I am not complaining, the campaign was great, but the Forerunners seemed weak after the Forerunner trilogy hyped them up.