 Conversely, his actions in mandating a premature across-the-board adoption of the untested M16 rifle proved catastrophic when the weapons began to fail in combat, though later congressional investigations revealed the causes of these failures as negligence and borderline sabotage on behalf of the Army ordnance corps' officers.McNamara tried to extend his success by merging development programs as well, resulting in the TFX dual service project to combine Navy requirements for a Fleet Air Defense (FAD) aircraft and Air Force requirements for a tactical bomber.His experience in the corporate world led him to believe that adopting a single type for different missions and service would save money.