That Chaotic Felhounds shoot albatrosses is intentional xD
I've still got no idea how to stop people buying from enemy shops short of making a second unit; I deemed it not really a problem.
The situation with the Defence of Thrilmir is supposed to inspire a little strategy; either you kick-ass with Henrik and beef him up with potions etc, or you let the Thirlmir boys do all the work and keep training more. Most people go for the Henrik ass-kicking :)
I tried my best to get all the cinematic text in line, but Warcraft is very fickle with cinematic transmissions... I originally intended to get voice actors in, but nobody replied to the adverts.