"Changjin Lake" Mei Sheng's identity is the instructor of the Seventh Company. Mei Sheng was originally going to retire and go home. When he knew that the Seventh Company had been assigned to the mission, he rushed back to the army. He wanted to fight side by side with the soldiers of the Seventh Company. Mei Sheng played an important role in this film. He said many things. All contain extraordinary significance.

Meisheng was both civil and military, brave and resourceful, and he was righteous. He also taught himself English for two years. When the Seventh Company fought against the US military, Meisheng used English to confuse the US military, which led to The opponent suffered heavy casualties.

Meisheng had a lovely daughter, and he carried his daughter’s photo with him. After the war, the first thing Meisheng did was to take out his daughter’s photo. That was his concern. . Mei Sheng is the think tank of the Seventh Company, advising the company commander Wu Qianli. The two brothers have a good relationship and a tacit understanding. Mei Sheng is as brave and good at fighting as other soldiers on the battlefield. In order to protect his family and country, he puts his own life and death aside and goes to the battlefield with the volunteers. , Mei survived in the end. Only Lei Gong died among the seven and six heroes, and the others did not die.