No no no, not like that, let me do it! xD Chapter 2 is really bugged more that you thought.
1.Very hard to complete that part of chapter, going to lower undead forces there.
2.To start a base you need a few basics of domestic economy!!! A town hall demands 205 lumber but only 385 gold while you have 510 gold: thus you can build a Lumber Mill before the Town Hall
3. You are not a good scholar, why didn't you learned "Summon Hawk" ability? That hint that sayd Summon hawk is very useful to locate invisible units did had any purpose? However Chapter 2 is not really developed, there are no AI and quests need some work but I think you loved Sylvanas introduction, isn't it?
Chapter 3 is only a paceholder to keep a map of Silvermoon I liked very much from another campaign.
Chapter 4 needs AI (I'm still learning to make it)
There will be an interlude between chapter 4 and 5 (the betrayal of Kael)
Chapter 5 needs AI and quest but that will be really epic (Kael-Kil'jeaden-Kalec-Anveena)