SQL Server 2012 Data Change Tracking
I would recommend to script a loop or cursor to enable this on all of your databases and tables. It will capture all of the columns automatically. 

Example of loop CDC Note: As always with code on the internet, evaluate cautiously and promote through personal and dev environments prior to production.


  By default, all of the columns in the source table are identified as captured columns. If only a subset of columns need to be tracked, such as for privacy or performance reasons, use the @captured_column_list parameter to specify the subset of columns.


CDC Configuration MSDN

I think it would be better to run SQL Profiler though to catch the code that is running and re-create it that way however. CDC will show you the end results, not how it gets from A to C.