Next time you have a question look in the walkthru section...
DONG ZHUO
Ashura
Stats: Base Attack 36
Average Weight
Luck Lvl 17
Mounted Lvl 17
Defense Lvl 15
Attack Lvl 18
Life Lvl 15
Battle of Liang Zhou
First, take all 5 of the enemy bases. This shouldn't be too tough. The
ones in the southwest and northeast call in reinforcements if you wait
too long, but you should have no problem getting to them first. Now
defeat Ma Chao. He'll have charge your base by now, so he'll be somewhere in the east amongst your army. Again, isolated as he is, he won't be too tough. Now take on Pang De. He's the toughest as he waits in the middle of his army. Take out the other generals first, one at a time if at all possible. After defeating Pang De, the Precious Item box will appear in the western part of the map, a little bit to the south.
SUN CE
Conqueror King
Stats: Base Attack 36
Average Weight
Charge Attack Lvl 15
Attack Lvl 18
Life Lvl 15
Speed Lvl 18
Musou Lvl 15
Sun Ce Illusionary Battle
Have fun with all the clones... your end goal is to defeat all of the
illusory Gan Jis °g within 10 minutes of the stage starting. The
stage starts pretty straightforward. Gan Ji will do annoying things like summon phantom soldiers, summon your own soldiers against you, and eventually summon illusions of Sun Jian and Da Qiao. Defeat Sun Jian in the west and Da Qiao in the east. Now SAVE. After all of this, Gan Ji will clone himself again. Your goal now is to defeat all of the clones (again, all of this needs to be done within 10 minutes). The first couple clones aren't too bad, but as you defeat them the remaining clones power up (go into hyper mode). If you have a Musou Kakusei, use it. Also be careful that you don't defeat the real Gan Ji (he'll have nearly two full life bars, so you should be able to tell which one is the real one) because if you do, the stage ends and you don't get your weapon. Once you defeat all of the illusory Gan Jis, the Precious Item box appears in the small area to the north. Grab it, then go back down south and finish off the real Gan Ji to complete the stage.
ZHANG JIAO
Roaring Fire God's Staff
Stats: Base Attack 34
Light Weight
Life Lvl 17
Musou Lvl 19
Musou Charge Lvl 17
Charge Attack Lvl 16
Defense Lvl 18
Yellow Turban Rebellion
This is probably the hardest fourth weapon to get in the game, both because the conditions are strict and because Zhang Jiao is a pretty crappy character. You must rendezvous with Zhang Bao £ó and brainwash Cao Cao's army, rendezvous with Zhang Liang £À and brainwash Sun Jian's army, and let Zhang Man Cheng £Ö¬ drop rocks on the enemy; and the kicker is you must accomplish all of this without letting any of your allies die. Thanks a lot, Koei. First things first; to have Zhang Man Cheng succeed in dropping the rocks, you'll have to take care of Gongsun Yue ö·z who's in his way. Do this as quickly as possible. Now go to the southern altar and rendezvous with Zhang Liang to brainwash Sun Jian's army. You have to stay on the altar with Zhang Liang until you get the cutscene where you succeed. You can kill stray Sun Jian subgenerals that get onto the altar, but you can't kill Sun Jian himself. After awhile you'll succeed. Immediately head for the central altar and meet up with Zhang Bao to do the same thing to Cao Cao's army. If you manage to complete all three successfully with all of your generals still alive, the Precious Item box will show up near Zhang Liang's altar. If your generals are dying, there are several things you can do; you can try and take out enemy generals near them (though remember, you cannot get Cao Cao or Sun Jian); you can take a strong bodyguard and leave them next to your allies (by pressing select until the 'hand' icon comes up); you can use a bodyguard with the 'Kobu' skill (which raises your ally morale); or you can play 2P and have the second player guard any of your allies in danger of dying.
If you successfully get the weapon, you still have to clear the stage; again, no mean feat for Zhang Jiao, since you have to kill every general that's left. Dong Zhuo shows up midway through the battle and yes, you have to get him too. Good luck, you'll need it.
Hope that helps...