Dynasty Warriors 6/Battle of Guan Du

Allied Forces
Forces:
 * Allied Forces vs. Dong Zhuo's Forces

Conditions:
 * Victory: Yuan Shao is defeated
 * Defeat: Cao Cao withdraws

Targets:
 * 1) Defeat either Yan Liang or Wen Chao
 * 2) Bai Ma castle and
 * 3) Guan Du West Gate and Guan Du East Gate do not fall