Medal of Honor: Pacific Assault introduced some new features to the franchise, such as recovering health by calling the corpsman, and the ability to order squad members to give covering fire, regroup, move up and fall back.
Medal of Honor: Pacific Assault Director's Edition features some additional content, such as a presentation that shows the history of American-Japanese war, behind the in-game missions (levels) and a built-in music player that allows the user to listen to the soundtrack.
Plot
The game begins with the player, in the role of Pvt. Thomas Conlin, a U.S. Marine in the Pacific Theater of World War II, taking part in the landing on the Tarawa atoll.
As Conlin's Amtrac approaches the shore, it's hit by an artillery shell, throwing Conlin and the other passengers into the shallow ocean, forcing them to wade ashore. Conlin fights his way onto the shore, only to get cut down by a bullet during a Japanese counterattack. As he bleeds out, the game flashes back to the start of Conlin's first day of basic training, where the player is introduced to the characters that will become his squad; the squad leader Frank Minoso; a big, smooth talking, New Jersey native; sniper William "Willie" Gaines, a country boy from North Carolina; and corpsman James Sullivan, a quiet sailor from a rich family in Oak Park, Illinois. After training, Conlin is assigned, without the rest of his training battalion, to serve aboard the USS Arizona. He arrives at Pearl Harbor early on the morning of December 7.
Conlin is reassigned to the 2nd Marine Raider Battalion, and together with his old bootcamp training mate they take part in the Makin Island raid. During the raid, they are tasked with destroying a radio tower, destroying a supply dump, and rescuing a downed airman, before returning to their insertion point to fend off a Japanese counter-attack and defend their submarines from an aerial attack.
Afterwards, Conlin is promoted to sergeant and squad leader. During the invasion of Tarawa, Conlin secures the beachhead before neutralizing a major Japanese command center and destroying Japanese AA guns, which are used by the Japanese to prevent American landing craft from approaching Tarawa atoll. Conlin and his men then continue to clear Tarawa of the remaining enemy forces.