Lu Bu's defection
In historical mode, play as anyone's force except for Dong Zhuo. When the regional lords join up to fight Dong Zhuo, do not participate. The region lords will lose and Dong Zhuo will continue to rule the land. Eventually Lu Bu and Diao Chan will talk about betraying Dong Zhuo. An intermission sequence of Lu Bu fighting some of of Dong Zhuo's men will start. After this, Lu Bu becomes his own force.