licensed from the United States and Europe, in addition to original designs created specifically for the game. The majority of these aircraft are unlocked by progressing through the Campaign mode, while others are unlocked while destroying a certain amount of enemies with a particular craft. In the Campaign mode, the player can issue orders to computer-controlled ally fighters, a method known as wingman interaction. With this, players can have fighters team up to take down a single target or spread out to cover more ground. Wingmen can be assigned specific aircraft before beginning a mission. Completing missions awards money that can be used to purchase aircraft, while certain missions unlock side games like midair refueling. The player's fighter has a limited number of ammunition, especially on harder difficulties. These fighters are also equipped with side weaponry unique to a particular model, such as guided bombs and salvo missiles that can be lock into multiple ground-stationed targets or aerial enemies. Plot The plot of the campaign revolves around a conflict fought between Osea and Yuktobania, the two superpowers of the series' universe of Strangereal. In late 2010, Yuktobania unexpectedly declares war against Osea and initially begins with the advantage, though this is gradually chipped away by Wardog Squadron, a small Osean auxiliary squadron posted to the front lines. Wardog's successes, including sinking Yuktobania's two gigantic submersible aircraft carriers and ballistic missile launchers, turn the tide of the war in favor of Osea, and their presence in battle increases the morale of Osean forces whilst striking fear into the Yuktobanians; this earns them the attention of Albert Genette, an Osean journalist who stays at Wardog's air base, intending to publish a news article about the squadron. Despite their successes, Wardog begins to suspect an unknown third party is posing as Osean and Yuktobanian pilots and manipulating events on both sides of the war, engineering attacks on civilian targets to discredit Wardog and exploit the hatred between the two countries to ensure the war continues. Wardog clears their names, but the third party begins attacking them directly, first ambushing the squadron during a flypast at an Osean political rally which results in Wardog's first combat loss, and again during an aerial refueling, which the squadron narrowly escapes. Squadron mechanic "Pops" tells Genette about the existence of the "Grey Men", a paramilitary group from Belka, a nation bitterly defeated by both countries in a