The Defense of Xianyang!

[In this year, at the age of 40, in March, your forces encircled the entire city of Xianyang. Utilizing cannons, bed crossbows, siege vehicles, and assault formations, your vast army blasted open the gates of Xianyang. Instead of rushing into the city, you employed aerial units for the initial bombardment. Ground forces, along with artillery, shattered the walls completely, then advanced simultaneously from the sky and the ground, breaching the outer defenses.]

[By April, all the people of the Qin nation had retreated into the inner city. Scores of skilled warriors roamed the outer city, engaging in guerrilla warfare within the confined space, including many grandmasters.]

[Your forces suffered frequent heavy losses, hampering further advancement. Suggestions were made to form assault squads to counter these harassments while the main forces continued to penetrate the inner city.]