Killzone 2 is a first-person shooter developed by Guerrilla Games. Killzone 2’s campaign starts off with the Prologue where the ISA have conjured up a group of cruisers including the New Sun, and sent them to attack the Capital city of Helghan, Pyrrhus. The ISA ships were ready to start the final wave of attacks on the city, but the ships could not proceed any more because of the heavy Helghast defense and the Anti-aircraft guns.
The ISA decided, because they needed to take the city they send in Alpha Team “The players team” but right as they almost capture the city the Helghast start there Barrier of electric towers around the city, and with crippling the ISA assault team they have one last shot for victory.The game-play of the game is pretty much the same as the first.The player plays as Sergeant First Class Tomas “Sev” Sevchenko who is a member of the ISA and at the age of 25 the war has already taken a toll on him. The multi-player component of the game is called War-zone and is in conjunction with the story campaign of the game. The player plays either Helghast or ISA and the online is class based with an assortment of different classes to choose from to adapt to the battle.
The game comes with five different maps including Capture and Hold, Assassination, Search and Destroy, Body count, and Search and Retrieve. Online matches can consist of 2 to 32 players, if the match does not have 32 players you can add bots”Artificial Intelligence” but only in a unranked match. The game in the U.S. grossed 323,000 in the first 48 hours of release and as of April 16, 2009 the makers announced that it had sold over 1 million copies.