Complex sentence: GUE renamed its'DIR Fundamentals' course to'GUE Fundamentals' in 2007, distancing itself somewhat from the acronym' DIR, while UTD change completely the DIR methodology to suit better their sidemount and CCR classes, not DIR by definition.
Split into simpler sentences: GUE renamed its'DIR Fundamentals' course to'GUE Fundamentals' in 2007, distancing itself somewhat from the acronym "DIR". UTD completely change the DIR methodology to better suit their sidemount and CCR classes, not DIR by definition.