The 200mm Gun is the primary coastal artillery used by the Imperial Japanese Army during its defense of Peleliu Island during the Pacific campaign of World War II. It was used as an anti-ship weapon.
Call of Duty: World at WarEdit
In the Call of Duty: World at War mission "Little Resistance", the 1st Marines were fired upon during their landing on White Beach by the guns. In the mission "Relentless" it is the main objective of Pvt. Miller. Miller along with Sgt. Roebuck, Pvt. Polonsky and other members of the 1st Marines to capture the guns on the Point so more troops could land.
It is possible to see one of these on the multiplayer map Cliffside. However, it is unusable.