vessels and dispatch boarding parties, which capture the vessel after a short period of time; capture can be sped up by using multiple Frigates against the same target simultaneously. However, these frigates are completely exposed to attack during the boarding process, and all capturing progress is lost if they are destroyed. Although Homeworld 2 nominally has no difficulty setting, it features dynamic difficulty adjustments, in which the strength of a level's opposition is determined using the composition of the fleet the player enters the level with (the fleet remaining at the end of the previous level). This led to an exploit in which players "retired" all of their ships at the end of the previous level, reducing them to RUs, and entering the next level with a huge store of raw materials to use against a very weak enemy. The game also codifies the support caps introduced in Homeworld, and explained in Homeworld: Cataclysm, by placing overall limits on how many ships of each class the player may control at once. Mission objectives in the single-player game are primarily achieved by destroying key enemy elements, capturing particular targets, protecting certain units for a particular amount of time, or towing an object back to the Mothership. In addition to the storyline objectives, a significant portion of the missions require the destruction of all enemy units. Multiplayer Homeworld 2 can be played online with 5 other players. Plot Homeworld 2 continues the struggle of the Hiigarans and their leader Karan S'jet. While in the original game the player could select either the Kushan or Taiidan races, in the sequel the Kushan are established as the canonical protagonists. During the events of the original game (and played out in the prequel Deserts of Kharak), the Kushan race of the planet Kharak discovered the wreckage of the Khar-Toba, an interstellar transport starship, in the Great Desert. Inside, they found an ancient Hyperspace Core, and a galactic map etched on a piece of stone that showed that the Kushan had been transplanted to Kharak long ago, and pointed the way to their long-lost homeworld, Hiigara. The Kushan built an enormous self-sufficient Mothership, powered by the Hyperspace Core from the Khar-Toba, to carry 600,000 people across the galaxy to Hiigara. Throughout their journey, the Kushan battled the forces of the Taiidan Empire, which had exiled them, and endured numerous other hardships along the way. With the