A secret message hidden inside the Halo Infinite E3 2019 trailer has finally been uncovered, and it sounds like there was more Cortana in the trailer than previously believed.
343 Industries unveiled a new trailer for Halo Infinite at E3 2019 this year that showed Master Chief being awakened by a marine outside the wreckage of a destroyed Halo installation. The trailer mostly focused on these two characters, with a small teaser for Cortana at the very end. But hidden in plain sight there was a mysterious message that teased even more mysteries related to the A.I.
Twitter user @xepyal tweeted at 343 Industries narrative experience director Dan Chosich with a URL link they found hidden in the Discover Hope trailer. The link directs anyone who clicks on it to a 40 second audio clip that begins with the sound of footsteps before a voice, which sounds like Cortana, says “This…this is a part of me. I don’t know why. I don’t how. But it is me.”
Source: IGN.com Halo Infinite E3 2019 Trailer Has a Secret Message From Cortana