Hey guys,
I have created a custom Minas Tirith Historical battle that is pretty awesome (and unlike Metallistic's unplayable lagfest from a few years ago, it actually runs pretty well). I have tried to follow the movie's sequence of events as closely as possible, while managing lag. It's roughly 10,000 Mordor and Harad Forces (Mumakil) vs. 3000 Gondor and Rohan forces (Rohan is AI controlled).
You play as Gondor. First the seige towers move to the walls, and the battering ram moves to the gate. Rohan's AI cavalry charge happens just as Mordor breaks open the gate and starts flooding into the city. They do massive damage to Mordor's army. Then The Mumakil arrive and tear up Rohan's forces on the Pellenor fields. While this is all happening, Mordor's army is breaking into the city, and you're fighting a desperate battle to hold them back with Gondor's archers and infantry.
I have tried to time the sequence of events so that minimal lag is present.
Let me know what you think. Enjoy!