The story begins during the Battle of Changjin Lake in December 1950, an extremely cold battlefield of minus 38 degrees Celsius
-Geographical environment: Frozen 1224 Highlands, snow-covered coniferous forest, and frozen soil layer up to 1.2 Meters
Weapon system: US military M1C Garand semi-automatic rifle (7.62×63Mm ammunition, effective range 730 meters), Soviet-made Mosin Nagant M1891/30 sniper rifle (7.62×54MmR ammunition, effective range 800 meters)
