Remember that HD CGI intro cinematic for Lightfall? Well, in that cinematic, three Guardians are killed by the Witness in their hyperships. And I want to be blunt: the Guardians who die aren't the same ones we saw in the trailers. That is, the Guardians who die because of the Witness are different characters. Their names: Reed-7, The Titan Aisha, The Hunter and Shayura, The Warlock. Reed is an Exo, and while the other two are human. And the Guardians we see in the Destiny 1 trailers are human; at no point are they shown to be of different species. I just wanted to clarify that because there are videos that say the Guardians in the Destiny 1 trailers are the same ones seen in the Lightfall cinematic.