I am currently playing as Sun Jian in the History of Heroes scenario and the forces have been cut down to me holding half of Jingzhou and the Southland, Liu Bei holding the other half of Jingzhou and the Riverlands, Zhang Lu holding Han Zhong, Ma Teng holding every city from Chang An' north, Cao Cao holding the entire north (except for one city), and Tao Qian holding that city in the north and 1 other. Me Liu Bei and Cao Cao each have about 500,000 men.