In the third stage, Battle of Nagashino ���‚̐킢, fulfill the following.
This is one of the trickiest weapons to get, and you'll likely have to
have the Matsukaze or another fast horse, and you'll have to save often.
--first clear Nagashino castle (the northeast area) of enemies.
--try to defeat as many of the following as possible (this isn't necessary,
but it will make your life easier)" Takigawa Kazumasu, Maeda Katsuie,
Niwa Nagahide, Shibata Katsuie, and the rifle units in center.
--once reinforcements appear near your home base, defeat them (as per the
mission) as quickly as possible.
--Maeda Keiji will begin his charge. QUICKLY get close to him before the
fail-mission message, but don't worry about defeating him.
--once your home base falls, your commander will begin retreating. If
everything was done right, he should retreat to the southeast.
By now somebody will probably defeat your general Baba Nobufusa �n��L�[;
Maeda Keiji will say something, and at this point the supply team will appear
in the lower right, heading for the gate in the upper right of the screen.
Defeat the supplyteam captain for the weapon.