How do you unlock all the characters from dynasty warriors 6?

Here is a list:

Cao Cao

Clear 3 Wei Musou Modes

Cao Ren

Complete target 2 Fan Castle - Lu Bu side

Diao Chan

Complete 1 Wei, Shu, Wu Musou Mode

Dong Zhuo

Complete target 1 Hu Lao Gate - Lu Bu side

Gan Ning

Complete 1 Wu Musou Mode

Guan Ping

Complete target 2 Fan Castle - Shu side

Huang Gai

Complete target 3 Chi Bi - Wu side

Huang Zhong

Complete target 1 Ding Jun - Wei side

Ling Tong

Succeed in 3 Battle Objectives on the Wei Side of the Battle of Shi Ting

Liu Bei

Complete 3 Shu Musou Mode

Lu Bu

Complete Sun Jian, Liu Bei, Cao Cao, and Diao Chan usou mode

Lu Meng

Succeed in 2 battle objectives on the Wei side of He Fei

Ma Chao

Succeed in battle objective 2 on the Wei side of Han Zhong Attack Defense Battle

Pang Tong

Succeed in 3 battle objectives at Cheng Du battle and finish battle with Pang Tong alive

Sun Ce

Succeed in Battle Objective 1 on the Sun Jian side of the Battle of Xia Pi

Sun Jian

Complete 3 Wu Musou Mode

Sun Quan

Succeed in Battle Objective 1 on the Lu Bu side of The Battle of Chi Bi

Wei Yan

Succeed in 2 battle objectives on the Shu side of WuZhang Plains and finish battle with Wei Yan alive

Xiahou Yuan

Succeed in 1 battle objective on the Shu side of Ding Jun Mountain

Xiao Qiao

Succeed in Battle Objective 3 on the Wu side of the Battle of Shi Ting

Xu Huang

Succeed in 2 battle objectives on the Wei/Wu side of Fan Castle

Yuan Shao

As Wei, complete all 3 targets and capture Wu Chao before completing the stage.

Yue Ying

Succeed in Battle Objective 1 on the Wei Side of Wu Zhang Plains

Zhang He

Succeed in 3 Battle Objectives on the Shu Side of the Battle of Han Zhong

Zhang Jiao

Beat stage with completing all three targets in the Yellow Turban Rebellion.

Zhang Liao

Complete 1 Wei Musou Mode

Zhen Ji

Succeed Battle Objective 1 in Xu Du Invasion Battle (Lu Bu Scenario)

Zhou Tai

Succeed in 3 battle objectives on the Shu side of Yi Ling

Zhuge Liang

Complete 1 Shu Musou Mode