This is the final William Wallace level where William himself comes to help out. First off, don't panic when the level starts - they make it sound like you need a wall up in .2 seconds or you'll die. Just get most of your people harvesting and all as usual, and setone to build two walls - one on each side of the trees. Be sure to BUILD A GATE!!

OK, now you're safe. Build up your town, build towers along the wall and fill them with archers. That keeps your wall safe. When you get the castle build, William shows up in boats. Get them into your walled area.

Now finish building your attack force and head on south!! It should be pretty easy to take down their castle in no time flat.

Age of Empires II Walkthrough