Nagamasa Azai's 4th Weapon Guide | Samurai Warriors 2

Stage - Defense of Odani Castle
Requirements - Complete "Defeat all enemy officers at Mt. Jizo" mission, and defeat all enemy officers except for Nobutada Oda and No within 10 minutes.

0:00 Intro
0:22 Defeat enemy officers in the north
1:32 Defeat all enemy officers at Mt. Jizo
2:10 Take out Ranmaru + enemy officers
2:53 Defeat Mitsuhide's ambush
3:33 Defeat Hideyoshi and the central garrison ambush
5:07 Head south to defeat Katsuie + enemy officers
7:08 Defeat the enemies to the north
8:08 4th weapon location

In order to unlock this character's 4th weapon, you need to have completed their story mode at least once. When completing the state containing the 4th weapon, it must be completed on at least hard difficulty.