Kastovia

​Kastovia​ (Cyrillic: Кастовия) is based on Russia or an Eastern European country.

Call of Duty: Modern Warfare
Kastovia appears in Call of Duty: Modern Warfare (2019), on the multiplayer map Arklov Peak, Grazna Raid, Gun Runner, St. Petrograd, Tavorsk District, Karst River Quarry, Gulag Showers, Krovnik Farmland, and Port of Verdansk.

Trivia

 * Interestingly, some of Kastovia's maps were originally set in Russia in the alpha version of Modern Warfare 2019.