down since the game's release, though it was widely praised by critics and players. Players can play via ad-hoc. Players can choose a team (between ISA and Helghast) and also choose a character in the multiplayer menu. There are a variety of game modes, including Deathmatch (where player kill one another regardless of team), Team Deathmatch (where teams kill one another), Deathmatch Duel (where a slightly smaller portion of the map is cut off by barbed wire so players have a smaller area to maneuver in), Capture the Flag (where teams try to get the enemy flag and bring it back to their flag) and Assault (where the Helghast team has to plant 3 charges of C4 around an ISA beacon and the ISA have to try and stop them). (Note: Deathmatch Duel is available after chapter five download). Infrastructure was only made available for download as DLC, and is not initially available for "out of the box play." The game features headset compatibility for online play. Plot There are five chapters with 4 levels in which players eliminate the Helghast resistance (the fifth and final chapter was made available to download). In Killzone: Liberation, two months after the events of Killzone, the Helghast have been dealt a hefty blow from the last game, but the war is far from over. The enemy still controls large parts of the planet Vekta, and though the ISA armies are fighting hard, they are losing ground. The rules of war have been cast aside with the sadistic Helghast General Armin Metrac, employed by the Helghast Emperor Scolar Visari to use brutal measures in order to seize the initiative after their past defeat and strengthen his position further. Metrac and his right-hand man, Colonel Cobar, are planning to capture three key figures of ISA, and their plan ends up successful. Returning as Jan Templar, players are sent on a covert operation to save hostages captured by Metrac, while ISA troops continue the fight for liberty. Rico Velasquez, Jan's friend on the battlefield, often assists him on his way through the enemy lines. Shadow Marshall Luger, another of Jan's partners, also helps him. As Metrac captures ISA Minister of War Heff Milcher, scientist Evelyn Batton, and ISA General Dwight Stratson, Jan is sent on the rescue mission. After a set of military operations, Templar is closely following the trail of hostages and pursues Cobar, who