Who do we believe was historical Cao Cao right hand man because I've heard a few people be called by a number of people I think no more about the 3 kingdoms than me,1.Xun Yu 2.Xiahou Dun .3 Xu Zhu (Total War General) 4. Guo Jia .And Cao Ren but mainly for military you do this while I'm busy reasons for the last one.

Who do we believe was historical Cao Cao right hand man because I've heard a few people be called by a number of people I think no more about the 3 kingdoms than me,1.Xun Yu 2.Xiahou Dun .3 Xu Zhu (Total War General) 4. Guo Jia .And Cao Ren but mainly for military you do this while I'm busy reasons for the last one.