Defeat all enemy generals that appear before Gong Sun Zan, Yen Gang, Zhao Yun, Zhang Fei, Guan Yu, Liu Bei on hard, in under 10:05 minutes. Yuan Shao's integrity is not a factor, you can let it drop as much as you want. If Zhang He and/or Tian Feng defects, it is not necessary to defeat them.
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