1. Concentrate superior forces to attack the enemy's weaknesses. Create a local area to defeat the small with more, and defeat the inferior with the superior to win strategic victory.

2. Destroy the enemy's important strongholds and attack the enemy's economic production and sustainability capabilities. For example, massacre of farmers, demolition of homes, and explosion of TC.
3. Control strategic military locations and occupy resource areas. Such as gold mining areas and highlands.
4. Make reasonable use of the combination of arms, give full play to the advantages of different arms, and form effective tactics.

5. Combination of arms: Absolute numerical superiority does not guarantee a successful siege. A reasonable combination of arms is more important. There is an obvious restraint relationship between various arms in the game. Accurately adjusting the proportion of your own arms can effectively break the enemy's defense line. The front row uses heavy infantry or cavalry to attract firepower, and the back row uses long-range troops to attack, which can cause a lot of damage to the enemy's castle.

6. Use skills: During the siege, you can also use some tactics and skills. Such as creating smoke or obstacles to cover your troops' attack; or pretending to retreat to lure the enemy out of the city and then kill them.

In short, to win in the game, you need to comprehensively consider factors such as strategic deployment, sneak attack tactics, teamwork, and troop matching.

The above is all about how to win in Age of Empires 2. I hope it will be helpful to you.