Dynasty Warriors 3: 4th Weapon Guide - Ma Chao

This is a guide in order to obtain the 4th weapon for Ma Chao, in Dynasty Warriors 3.
Weapon Name: Steel Dragon
Base Attack: +42
Element: Fire (C6)
Other stats:
Jump: +21
Mounted Attack: +60
Mounted Defence: +60
Reach: +21
Requirements:
Stage: The Battle at Tong Gate (Original Mode) - Allied Forces
Meet up with Cao Cao and trigger the cutscene of them meeting. Allow Han Sui to defect by having Han Sui meet up with Cao Cao. Supply Captain appears in the north central island, near the west bridge.
Other notes:
Causing Han Sui to defect is not hard when you know what to do. Resist the urge to defeat all of the southern troops - Cao Hong, Cao Ren and Xiahou Yuan - as this will allow Pang De and Ma Dai especially to catch up with Cao Cao, preventing him from meeting Han Sui.
After a few minutes into the battle, Xu Huang will arrive in the north-west, along with Zhu Ling and Jia Xu. Cao Cao will start heading west too, once the message "They are moving along the Wei River" appears. Clear the enemies in the way, and Cao Cao will start talks with Han Sui once Cao Cao meets Han Sui's troops. Once Han Sui and Cao Cao actually meet in battle, the defection will happen not long afterwards.