get all 3 enemy entry points without being discovered in under 5 minutes on hard. Enemy entry points will re-appear, but you only need to eliminate them once. It is acceptable to be discovered by the Guard Troop beside the top enemy entry point if you eliminate that last enemy entry point captain quickly after being discovered. You don't have to clear the stage without being discovered. It is acceptable to be discovered after receiving the weapon message.
Ma Chao
Weapon=Dragon Rider Spear
Stage=Campaign for Cheng Du
Method = Reach the left side of the map to trigger the enemy back-up troops appearance, defeat enemy back-up troop generals Pang De and Ma Dai.
This weapon can only be earned in Musou Mode. If you play Free Mode, the back-up troop generals will be Ma Chao and Ma Dai. This weapon can not be earned on your first Shu Musou Mode game. You need to have already unlocked Ma Chao as a playable character previously.
Kill Zhang Fei, Huang Zhong and Ma Chao without losing any tanks on hard mode. Although it is okay for you to lose them after you get the weapon message
Defeat the 2 Guard Captains of the castle. Meet with Sun Quan. All in under 3 minutes and on hard.
Get 300 KO Count in hard mode
Get 800 kills in Hard Mode
On hard mode get 50 kills in 4 minutes
Get 100 kills in 3 minutes on hard mode
Achieve 300 KO Count in under 4 minutes on hard.
Get 100 kills in 6 minutes and 35 seconds on hard mode
Get 300 KO Count in under five minutes and win with the difficulty on hard
Achieve 100 KO Count in under 4:30 minutes on hard.
Don't let any one pass the bridge and kill all generals on hard
Kill Cao Ren, Zhang He, Xu Zhu and Xu Huang on hard mode
On hard mode, get 400 KO Count before Xiahou Duns reinforcements comes
Before your ally troops get eliminated, defeat Guan Xing and stop the rock attack on hard
Beat Hua Xin, Hua Xiong and Lu Bu in under five minutes on hard