Is Shay Cormac a Bad Guy?

Ubisoft staff have emphasized that Shay is not evil or ruthless at any point in the game's narrative, but rather the narrative focuses on Shay "as a human being, his story, why he's doing what he's doing, all in the context of demonstrating these gray areas".

Who killed Shay Cormac?

As he attempted to leap into the water below, one of the Assassins shot Shay in the left shoulder from behind, which caused him to fall off the ledge; Shay was led to believe it had been Liam who shot him.

Was Achilles A bad assassin?

Personality. As a result of losing his family and for failing the Assassin Order under his leadership, Achilles lost his will to fight and became stoic and disillusioned in the Assassins' cause. When first meeting and training Ratonhnhaké:ton, Achilles was a strict, insensitive and somewhat short-tempered man.