CHICAGO–(BUSINESS WIRE)–Fitch Ratings has downgraded two classes and affirmed eight classes of Credit Suisse First Boston Mortgage Securities Corp., commercial mortgage pass-through certificates series 2004-C2. A detailed list of rating actions follows at the end of this press release. KEY RATING DRIVERS The affirmations of classes D through K reflect full coverage of these classes by defeased collateral. The downgrades of class N and O reflect realized losses. As of the November 2016 distrib