In 1937, Nanjing fell and the mountains and rivers were shattered. A modern special operations team traveled through time and space, was reborn as a remnant of the national army, and fell into a battlefield of mountains of corpses and seas of blood.
The Japanese army was rampant, the defeated troops were scattered, and the people were displaced. They were trapped in a desperate situation, without food and help, and could only survive by relying on the tactics they remembered.
I got a golden finger by accident, and the military terminal interface came to my mind. Killing enemies can accumulate military merits and exchange them for weapons and equipment.