Doesn't some of us wish to be the Fallen Guardians. Or Corrupted or Lost in The Dark? In my group of friends I was voted most likely to fall into evil or be the hero who ended up a Villain, the Anti-Hero. So I always rolled those dice. Now, I see a chance for an Evil character. Eris Morn "looks" to have been corrupted by the Hive. So maybe the Awoken could be corrupted. Or the Exo could get a virus code from the Vex. Not all Guardians have to be the impervious heroes. Do we not fall in love? Do we not have hate in our hearts? What happens if our Ghosts die?? Can we not have trauma or residing emotions from our past? This would be a twist in the story, a way to enhance PvP. PvE could be NPC Guardians or other Enemies factions. It's not impossible. We could do this in Destiny 2.