Lei Gong is a platoon leader and a soldier of Company 7 17, so he is the oldest in Company 7. I can't hear in my left ear because of the war. In the first battle after the Seventh Company entered the DPRK, Lei Suisheng led half of the American troops and a reinforced American army up the mountain, and finally turned defeat into victory.

In the general attack on Changjin Lake, Lei Suisheng took the artillery platoon and successively blew up the towers and tanks of the US military positions. However, when the US "Polar Bear Regiment" was wiped out to clean up the battlefield, in order to give the troops more time to stop reinforcements, Lei Suisheng drove a car with identification bombs to distract the plane and eventually died heroically.

Lei Gong was the only one who died in the leading group of the battle of Changjin Lake.

Considering the war, it is impossible without sacrifice, and no one is absolutely lucky in the rain of bullets. These characters, such a story, the director and the crew may consider if they sacrifice Lei Gong and others, such as Li Qian, or Mei Sheng as a father, or Wan Li who just joined the army. It's so cruel and sad, I'm afraid the audience's emotions are unbearable.

But this group of people, if they all survive in the end, is not realistic enough for the war. Therefore, there must be sacrifices. This person's sacrifice must be expressive and can impress the audience.

Then there is Lei Gong. Lei Gong is a veteran. He is not only old, but also prestigious in Qilian. People in Qilian affectionately call him Lei Dad. His sacrifice is more expressive and convincing. His sacrifice touched Qilian, and Wu He's sadness touched the audience.

And Lei's father's sacrifice also reflects a veteran's experience and cognition of the battlefield. He knows the significance of marking bombs, and he wants more comrades to survive.