Arsenal will have to setup just right to get anything out of their second leg against Bayern Munich.The Gunners face a daunting, and many feel, impossible task to overturn a 3-1 deficit from the first leg.The London club must feel some comfort in knowing that stars such as Franck Ribery, Bastian Schweinsteiger and Jerome Boateng are missing for Bayern.Things are not so bright for the Gunners either