Time Travel to 1950: from Recruit to Legend

Chen Mo, a 21st century social worker who died suddenly while working overtime, opened his eyes and became a recruit on the Korean battlefield in 1950. Changjin Lake is extremely cold, the bolt of the gun is frozen and cannot be pulled open, the cotton shoes are lost halfway, and the comrades fall beside them. There is no system, no plug-ins, just a body that is afraid of cold and death. Others rely on their lives to survive, but I can predict the impact of artillery fire, see through ambush, and use snowdrifts to create false positions to deceive enemy aircraft. The new recruit's egg turned into a sharp knife, the company commander rushed to get it, and the veterans were convinced. From escaping on a snowy night to leading a surprise attack, he gradually became a legend of the Volunteer Army. (Names are fictitious)