How do you get lu bu in dw6

To get Lu Bu you need to clear musou mode with the three kingdom rulers: Sun Jian of
Wu, Liu Bei of Shu, and Cao Cao of Wei. In order to get the three rulers, you need to
clear musou mode with three generals in each kingdom. When you beat Kingdoms
musou mode twice you unlock another officer. When i was trying to get Sun Jian. I beat
it with Zhou Yu and Lu Xun. When i beat it with Lu Xun i got Gan Ning and beat the
musou mode to get Sun Jian.