- last post: 01.01.0001 12:00 AM PDT
First of all, I think everybody who is saying "you are delving too deeply into this trailer" is an idiot because they are reading these forums too. They see the thread topic and must know that it is going to be a bunch of theories about the trailer, and yet they still take the time too post stuff on the forums. Do you people honestly have the time to go through every thread and bash every body who puts an idea down?
Secondly, I think that the "screaming" you heard is Cortana, and that she is being manipulated by the Gravemind. This would also explain why you can hear what sounds like the Gravemind's voice.
But then again this is all guesswork. :D