I'll say it now, Cayde-6 needs to die to bring some conviction back to the story and give the player some reason to fight. But, if we have to have the ghost talk for the guardians instead of them actually having a voice and true feelings for the loss I'm afraid it'll just feel empty and half baked.
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The Vanguard: Cayde’s death affects us all in different ways. His death has left a hole in the Vanguard and in our hearts. Do you feel the same way, Guardian? Guardian: ... Ghost: Yeah, he says he’s so sad. Boo hoo, Lol rawr, I’m so random xD. OwO Let’s go kill Uldren so he goes from Awoken to Sleepin’. *Bungie proceeds to win the Game Award for Best Writing in a Game