Each unit is ranked in terms of armor, speed, maneuver, firepower and cost. First and foremost among the ships is the space station in orbit around your home planet. Here you can build new units, research technologies and upgrade existing ship classes. Battle cruisers come next on the list of units. These are giant ships that are used primarily as carriers.
Destroyers come third.
There will also be support corvettes, escort shuttles and science vessels. The fourth group of units are commandos which are used to board and capture enemy ships. Fighters are the final class of ships. They operate in up to 12 squads each under the command of an individual leader. Each leader gains experience from combat and develops a unique set of skills.