Pour 2XL :
Non, ça m'étonnerait beaucoup :
Juste sur PS2 & 360
Pour l'arme 4 de Nagamasa :
Pourtant, j'ai eu souvent cette arme, au moins 3 fois, entre toutes les versions que j'ai, et ça a toujours marché 
As-tu fini au moins 1 fois le mode Story? Es-tu en hard? ça semble idiot mais des fois ça arrive qu'on y pense pas...
Jte donne une soluce en anglais, tu me diras ^^
Nagamasa Azai
Name: King's Honor
Base Attack: +45
Element: Lightning
Stats: Attack +35, Defense +17, Horse +35, Musou Charge +56
Stage: Defense of Odani Castle
Requirements: Succeed in the mission 'Defeat all enemy officers at Mt. Jizo'. Keep most of your allies alive and get rid of all enemy generals except Nobutada Oda and No. Complete the requirements within 10 minutes and wait for Nagamasa to order full assault.
Recommended level: +25
This is easy weapon to obtain since it's ok if you don't get all officer KOs. Just concentrate on keeping your allies alive and completing the missions. You start from the northeast corner. Go west and defeat the first two officers you encounter, Saizo Kani and Hidemasa Hori. Keep going west and enter the garrison. Complete the first mission by defeating the two officers there. Exit Mt. Jizo from the south enterance and you'll face Ranmaru and Ujisato Gamo. Defeat them and Mitsuhide who appeared right next to you. Then, hurry to central garrison which Hideyoshi blew up and prevent his entry to Inner Ward. Also, when you enter the garrison, defeat the three Oda officers who ambush you. Now head to Kingo Ward in the southeast and rescue Tsunachika Kaiho from Katsuie Shibata. Proceed westwards and defeat Kazumasa Takigawa and Narimasa Sassa. Return to Minor Ward in the north and you'll find the last two Oda officers. Defeat them and Nagamasa orders his army to charge. Assuming you did everything within 10 minutes, the transport units appear in the west stronghold south of Mt.Jizo. Catch up with them and slay Nobunaga in the name of honor and love.
NOTE: Make sure you defeat Hideyoshi, Mitsuhide and Katsuie personally, just in case.
Source : http://s13.zetaboards.comm/koeiwarriors/topic/252841/1/