NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned the following ratings and Rating Outlooks to Credit Suisse USA CSAIL 2015-C3 Commercial Mortgage Trust Pass-Through Certificates. --$60,509,000 class A-1 'AAAsf'; Outlook Stable; --$148,324,000 class A-2 'AAAsf'; Outlook Stable; --$200,000,000 class A-3 'AAAsf'; Outlook Stable; --$502,390,000 class A-4 'AAAsf'; Outlook Stable; --$82,627,000 class A-SB 'AAAsf'; Outlook Stable; --$86,962,000 class A-S 'AAAsf'; Outlook Stable; --$1,080,812,000b