Cao Cao's forces will appear to the south at the beginning of the battle and launch an assault on the altar where Zhuge Liang is located. You can quell the assault by defeating the three officers that come along with it, one of which is Xiahou Dun. A second assault should be on its way now, which is a ship with Sima Yi approaching the altar from the west.
With him out of the way, Zhuge Liang is worried that Pang Tong is in danger, so board the ship to the south of the altar to make your way to Cao Cao's main fleet. When you board the main fleet, head north to where Pang Tong is located to rescue him by defeating Zhang Liao. Pang Tong notes that the linking of the ships won't work until Xu Shu has been defeated, so head to his location to do that.
The linked ships plan will now be put into action, as well as the fire attack, making it so all of Cao Cao's ships are now ablaze. For now, just run around and defeat officers until you are told to go after Cao Pi. Once he's gone, start picking apart the rest of the officers, slowly making your way towards Cao Cao, who will end up escaping to the south using his boat. Keep going and once you catch up, defeat Zhang Liao and Xu Zhu to finish the battle.
|Both Hypothetical situations in this battle involve finding Xu Shu after the fire attack has succeeded. It's best to use Zhuge Liang in this battle, as getting the stars to hit with other characters can be kind of hit or miss. Carry out the battle like normal on your side, including defeating Xu Shu after rescuing Pang Tong. Eventually, Cao Cao will escape to the south using a boat and when that happens, Xu Shu will appear up north on the ships, so wait there until he does and eventually there will be a conversation, then he'll leave.|