Continuity mistake: "Episode 16-17. In Episode 16 when Linc is to be executed you see the clouds pass in front of the full moon. In Episode 17 - a couple of days later - you again see the full moon."
Plot hole: In a previous episode Link says he ditched the gun after he was framed and that he chose the gun the night before. Earlier in the episode, Michael met Link off the street, then went to a bar and met Veronica, then those two go to Michael's apartment. At the apartment, Michael gets the call from Link who is trying to get Michael to talk him out of killing Stedman. But how could he choose a gun the night before when he is asked to kill Stedman and calls Michael on the same day?
Audio problem: When C-Note and the other guy are talking at the train station the other guy says "-been on lead for a long damn time now" and his lips aren't in sync with the sound.
Answer: Don Self actually worked with Whistler before he died. And Whistler with the bird book actually knew where Scylla was.