Wubei Zhi (Vol. 10)

...levying soldiers and drawing in grain. The generals Feng Yin and Zong Xin were guarding Xunyi and began to fight for power. Yin then killed Xin and rebelled, attacking Yu. Yu sent a messenger to report this to the Emperor. The Emperor asked the messenger who was trusted by Yin. He replied, "The Protector of the Army, Huang Fang." Fang then truly captured Yin and brought him to justice.

The Grand Marshal, Wu Han, led the General of Jiancheng, Geng Yan, and the General of Hanzhong, Wang Chang, to attack the two rebel groups of Fuping and Suo in Pingyuan. The rebels had over fifty thousand men and attacked Han's camp at night. The army was in a panic, but Han lay firmly in his tent and did not move. After a while, the situation stabilized. He immediately dispatched elite troops that night to charge out of the camp, attacking and thoroughly defeating the rebel masses. He then pursued the remnants, chasing them to Wuyan, and advanced to attack Bohai, pacifying them all.

Feng Yi and the Red Eyebrows agreed on a time to do battle. He had his brave soldiers change their clothing to match the Red Eyebrows and set an ambush...