The long-awaited, highly anticipated Marvel One-Shot about the Punisher is finally here, and while it works as an intense, action-packed introduction to the character, we’re a little confused as to its overall purpose. Titled The Punisher: One Last Kill , the show (which runs a little under an hour) stars Jon Bernthal as Frank Castle , aka the Punisher, who is dealing with some major issues. At some point in the past, his wife and kids were killed by a mob family, and he went on a killing spree to get revenge. Now, he’s still struggling with their loss but is forced to put that aside to attempt to survive an elaborate attempt on his life. There’s action and violence, as well as a dynamic, powerful performance by Bernthal. The release of One Last Kill comes on the heels of Daredevil: Born Again season two . The first season saw the reintroduction of Bernthal’s Punisher into the Marvel Cinematic Universe, but he was nowhere to be seen in season two.…