What happens if Tribals or Fletchers are replaced by earlier Italian, French, or German destroyer classes?
Short answerThe earlier ships fare worse because the two Allied classes combine the necessary radar and gun power, despite different torpedo tradeoffs.
NotesThe Tribal brings heavier gunfire and can exploit smoke, while the Fletcher carries more torpedoes. Those differences give the two classes distinct tactical strengths rather than making one a universal substitute for the other. Both nevertheless possess the radar and effective guns needed for the proposed fight. Swapping in earlier Italian, French, or German ships generally worsens their position because those designs do not reproduce the same combination of sensors and firepower.