ClassesShips are separated into five main classes, each with an approximate size and role (though these do vary between manufacturers and navies
Corvettes are the smallest commonly used class. They serve as mainly support ships, though can be assembled into squads with frigates to preform fast hit-and-run attacks. They're also commonly used as patrol craft.
Frigates serve much the same role, though slightly bigger and more powerful. They carry weapons big enough to take down bigger craft on their own, so they are also deployed into fire support positions.
Destroyers are generally more backline ships, equipped with heavy, long-range weapons. They are often the smallest class to deploy spinal weaponry. A group of destroyers is a formidable threat to lone ships.
Cruisers are the backbone of any fleet. Much cheaper than a battleship, but with enough firepower and durability to hold its own, cruisers make up the bulk of most fleets. They are often adapted to a multitude of roles, from picket ships loaded with point-defense lasers to snipers bristling with railcannons and spinal weapons.
Battleships are expensive, heavy, and slow to accelerate craft. But they also pack a significant punch, and can take one too. A single battleship, with good command, can wipe out a smaller fleet solely because they cannot even get through its shields, let alone the multi-ten-meter armour underneath. They are generally in the same situation as cruisers, though they attract a lot more fire due to their sizeable firepower.
Heavy, light, what does it mean?These warships are generally divided even further into light, normal, and heavy versions. These just generally denote variants that are smaller or bigger than the normal class, though not enough to warrant different classification. There are also super- and ultraheavy variants, though these are mostly in use for battleships, which have no upper limit to size.
For example, the two Indomitable-class heavy cruisers of the Anakrionian Defense Fleet are classified as such because they are bigger then the fleet's other cruisers, but not enough to be called battleships.