Play the Battle Of Guan Du scenario as the Cao Cao force. Yan Jin and Bai Ma must not fall. You will need a strong character that can defeat enemies quickly. Make sure to have Renbu Bag, a long Musou gauge, and a fast warhorse. The enemy officers will try to siege Bai Ma and Yan Jin at the same time. Move between them as fast as possible to aid the guards. If either falls at any time during the battle the target is a failure. Keep the enemy back and defeat Yuan Shao as quickly as possible.