Dynasty Warriors 3: 4th Weapon Guide - Cao Cao

This is a guide in order to obtain the 4th weapon for Cao Cao, in Dynasty Warriors 3.
Weapon Name: Wrath of Heaven
Element: Steel (C6 followed by Charge, up to 5 hits)
Other stats:
Attack: +24
Bow Attack: +52
Mounted Attack: +48
Reach: +24
Requirements:
Stage: The Yellow Turban Rebellion (Original Mode) - Han Forces
Defeat Zhang Bao and Zhang Liang, without either side losing any gates. Supply Captain appears next to the north west gate and heads east towards the centre north gate.
Other notes:
A very easy weapon to obtain, for something so powerful. Go for Zhang Bao first, as you will not be able to reach the supply unit if you go for Zhang Liang first. Just go straight for the requirements from the start of the battle, you don't have much time before the risk of a gate being lost on either side is too high.