Destroyers (or DD) are the smallest ship class in World of Warships Blitz. Their main characteristics are their speed and torpedoes but also thinner armor and smaller guns when compared to the other warships such as cruisers and battleships.
Destroyers are best used in hit and run tactics, where they excel with their high damaging torpedoes and excellent maneuverability. Their speed also allows them to intercept other destroyers and to bolster anti-air defenses in a different sector.
A good destroyer commander has to know that destroyers are outgunned (at long range) and outarmored, and they have to make up with speed and maneuverability.