Keep your eyes on your minimap, and look for any white X. Have Morgan exit the fort through the left gate and circle it counterclockwise. Now you can you can simply press that number key to bring him up. Meanwhile, locate your Morgan Black unit, and give him his own team number (hold Control and press one of your number keys).
(That is, for every four Crossbowmen you produce, you should be producing one Pikeman.) Make this easier on yourself by holding the Shift key when selecting a unit to produce, as you'll make five at a time.
Then, in your front two Barracks, start producing Crossbowmen and Pikemen at a rate of about 4 to 1. Now, on the back two Barracks, start by upgrading your Crossbowmen and your Pikemen. This sets a rally point so any troops produced will head there, and they'll automatically engage the enemy. Double-click one of your Barracks to select them all, then right-click near the gate in the wall. You can sort of use this to your advantage. Now, for whatever reason, all the soldiers (ally and Ottoman) can shoot through your walls. You've got a decent supply of resources, and simply must produce as many soldiers as you can. The primary objective here is to simply defend your base.
