StarCraft: Brood War
=== Setting ===
Brood War takes place in the StarCraft universe, set around the early 26th century. Terran exiles from Earth have colonized a distant area of the Milky Way galaxy called the Koprulu Sector, having established several governments. Eventually, a civil war breaks out and ends with the formation of the Terran Dominion. However, humanity soon becomes caught in a war between the Protoss and the Zerg, which culminates at the end of StarCraft with the death of the Zerg leader, the Overmind, on the Protoss homeworld of Aiur. Without the Overmind to command, the Zerg rampage mindlessly across Aiur, while the cerebrates—the secondary commanders of the Swarm—attempt to regain control. After the discovery of alien life in the Koprulu Sector, the United Earth Directorate (UED)—the international body governing Earth—decides to send an expeditionary force to secure the sector and prevent the aliens from finding Earth. Brood War begins two days after the conclusion of StarCraft.
=== Characters ===
The player assumes the roles of three anonymous characters over the course of the game. In the first campaign, the player assumes the role of a Protoss fleet commander. The player's character is commanded by Zeratul and Aldaris, two adversaries from StarCraft who have since reconciled their differences to lead their people in the face of the rampaging Zerg. They are joined by Jim Raynor, a Terran rebel on the run from the Dominion, Artanis, the previous Executor of the third campaign of StarCraft who has recently been promoted, and Raszagal, the matriarch of the dissident dark templar faction in Protoss society. The second campaign sees the player as a captain in the UED expeditionary force, reporting to the fleet's admiral Gerard DuGalle and his vice-admiral Alexei Stukov. To secure the sector, the UED plans to overthrow the Terran Dominion and its emperor Arcturus Mengsk, and are assisted in this by Samir Duran, a mysterious psionic ghost espionage agent, and his group of anti-Dominion rebels. The final campaign has the player assume the position of a Zerg cerebrate, a commander within the Zerg Swarm. The player is put under the control of Sarah Kerrigan, a Terran who was infested by the Zerg in StarCraft.
=== Plot ===
The story of Brood War is presented through its instruction manual, the briefings to each mission, and conversations within the missions themselves, along with the use of cinematic cut scenes at the end of each campaign. The game itself is split into three new episodes, one for the player to command each race.
In the first episode, Aldaris, Zeratul, and the newly promoted Artanis work to evacuate the surviving Protoss from their devastated homeworld through a warp gate to a dark templar colony on Shakuras, where they meet the matriarch of the dark templar, Raszagal. Although the Zerg are able to follow the Protoss to Shakuras, Raszagal informs the survivors of a Xel'Naga temple on the surface of the planet with the power to scour the Zerg from the surface if activated. Reluctantly partnering with Sarah Kerrigan, who informs them of a new Overmind growing on Char, the player joins Zeratul and Artanis in an operation to recover two key crystals (Khalis and Uraj) necessary to operate the temple. Upon their return, it is revealed that Aldaris has begun an uprising against the dark templar over their alliance with Kerrigan. The uprising is crushed, and Aldaris is killed by Kerrigan, who reveals that her motives are to ensure the destruction of the Zerg cerebrates on Shakuras so she can gain control of the Zerg herself before departing the planet. Despite knowing that activating the temple will accomplish Kerrigan's objectives, Zeratul and Artanis proceed with little other choice, wiping the Zerg off Shakuras' surface.
In the second episode, the player leads the United Earth Directorate's initial incursions against the Terran Dominion. Upon meeting Samir Duran, the fleet's vice-admiral Alexei Stukov conscripts Duran as a special advisor. The UED soon discovers a "psi disrupter"—a device capable of disrupting Zerg communications—on the former Confederate capital Tarsonis. Although Duran persuades admiral Gerard DuGalle to have the anti-Zerg device destroyed, Stukov's forces relieve Duran at the last moment. The UED proceeds to the Dominion throne world Korhal IV where the player defeats Arcturus Mengsk's armies, although Mengsk is rescued when a Protoss fleet commanded by Jim Raynor arrives. The UED tracks Raynor and Mengsk to the Protoss homeworld of Aiur, but the two escape the massive UED assault when Duran inexplicably moves his forces out of position and allows the Zerg to interfere with the operation. Having understood that the UED invasion had caused Mengsk, Raynor, and the Protoss to band together against a common foe, Stukov realizes that Duran's actions and the Zerg attack were too much to be a coincidence—the Zerg were also allied with the Terran Dominion and the Protoss, and Duran had been working to undermine the UED. While Stukov takes a contingent of troops and reconstructs the psi disrupter on Braxis, DuGalle is unaware of his intentions and becomes convinced that he is a traitor. The player helps Duran hunt down Stukov inside the psi disrupter, but before he dies, Stukov reveals to DuGalle that Duran is the real enemy. Duran flees after the player foils his attempt to sabotage the psi disrupter. Using the psi disrupter's capabilities, DuGalle and the UED are able to assault the Zerg world Char and take control of the new Overmind growing there.
The final section of Brood War sees the player helping Sarah Kerrigan defeat the UED. With the Overmind falling under the United Earth Directorate's command, all operations amongst native factions in the sector are damaged, including Kerrigan's forces. To begin the campaign against the Directorate forces, Kerrigan and Samir Duran form a reluctant alliance with Jim Raynor, Protoss praetor Fenix, and Arcturus Mengsk to destroy the psi disrupter. After destroying the psi disrupter, the player leads Kerrigan's forces in a full-scale assault on Korhal, quickly breaking the UED's hold over the planet. In the aftermath, Kerrigan betrays her allies, destroying a large number of Dominion forces and killing both Fenix and Mengsk's right-hand man, Edmund Duke. Angry at Kerrigan's betrayal, Raynor promises that he will kill her one-day and then retreats. Kerrigan travels with Duran to Shakuras and abducts Raszagal, who she uses to blackmail Zeratul into killing the Overmind on Char, thus bringing all Zerg forces under Kerrigan's control. Zeratul attempts to rescue Raszagal, but the player prevents their escape, and Zeratul eventually kills Raszagal when it becomes clear she has been irreversibly brainwashed by Kerrigan. At that moment it became clear that Aldaris's uprising in the first episode was an attempt to stop the brainwashed Raszagal from betraying her people any further. Upon leaving Char in search of Artanis, Zeratul stumbles upon a genetics facility run by Duran without Kerrigan's knowledge where a Protoss/Zerg hybrid is being developed. At the same time, Kerrigan is attacked on Char by the Dominion, the UED, and a vengeful fleet commanded by Artanis. Despite being outnumbered, Kerrigan defeats all three fleets and eradicates the surviving UED fleet, leaving her the dominant power in the sector. Before the UED fleet was wiped out, Admiral DuGalle sent a final message back to his family before committing suicide with his pistol.
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