In addition to the things listed above, this map contains a neutral level 10 Dark Elf, an unclaimed Guard Room, and an unclaimed Workshop with a neutral level 10 Troll inside! However, you cannot get to these rooms until you gain access to the Wooden Bridge.
There is not much in the way of special advice for this map. Your sub-objectives will get you most of the way to your goal; just keep building at least one decent-sized room of each type as it becomes available, and after a while, you can drop in some Heroes to be slaughtered by your trained Goblins and Salamanders, and soon you'll be done.
