INSTRUCTIONS:

  Write a different ending from the scene when the muslims are trying to storm into Jerusalem through the hole in the wall and the defenders are trying to stop them,

I encourage you to write in English. Use short sentences. 

cuando los cristianos estaban defendiendo el muro para que no pasaran los musulmanes.Los musulmanes lanzaron muchas  bola de fuego al mismo tiempo y murieron la mayoria de los cristianos, al final los musulmanes ganaron y los que quedaron vivos de los cristianos se fueron.

when Christians were defending the wall to not pass the musulmanes.Los many Muslims hurled fireball and died while most Christians, Muslims ultimately won and those who remained alive were Christians.