Navy build should be based on the resources u have most. for exm if ur electronic production is good u should go for submarine. if ur electronnic is weak and component is good then go for crusers. if ur both r weak batter to go for destroyer. crusers and frigates r weak against subs Subs r weak against destroyers Destroyers and frigates are weak against crusers we can use hidden mission with subs like if u want to destroy enemy infrustructuere research subs and missile to hit infrustructure and …