Like most Allied production structures, Seaports make use of Standardised Production Automated Manufacturing (SPAM) Modules to assemble a wide variety of military vessels from a single universal component. These structures are also equipped with repair drones, which automatically repair any damaged vessels nearby. In addition, they are also responsible for training dolphins. By receiving encrypted signals from the Virtually Operated Industrial Production (VOIP) system of a nearby Construction Yard or Command Hub, Seaports are able to produce more advanced naval units.