In fact, the entire garrison may be dead. The bandits need to get real lucky, but it could happen.
Appoint a new commander from the survivors. Skip the conversation if it was a masacre.
Sir Gerrick is not the leader, and Urza Afalas is just a loyal follower, neither are heros any longer. Update their overlays and ellipses to reflect their new status.
I never understood the purpose of mermen. All they do is change what the Naga Queen has to say. Let's let Sir Gerrick recruit them here. It's really just about the only place in the entire campaign where they actually can do some good! Why limit him to just those Deoran had?
When we next see Sir Gerrick and the units he has on the map will be in S09a. While Sir Gerrick will be fine, the units will appear to be in poor shape in the recall list. Let's heal everyone, first, so we're sure everyone is in fighting shape when they return.
When Urza Afalas and his band join Deoran they should be able to move. But, since they're changing sides their movement won't have been reset, yet, so we have to do it by hand.
There is no reason to stop his moving about. Separating his sighted event and finding the bandit encampment eliminated any problems with his movement. This was a todo comment for when this was fixed. Actually, I think the real problem was the inapproriate sighting of the bandits when we found the lich.
A 1/2 second flicker to the lich really doesn't show anything. Instead, scroll to it and stay there for the comment so the player can actually see the lich and study the area.
Deoran and Ethiliel's comments should apply when there are undead remaining. This is separate to a general command about arrows (pierce attacks) not working on skeletons.
Make the bandits on side 3 appear to be on the same side as Urza Nalmath. They are on side 3 as an implementation detail so the AI will handle them separetely from his other units.
The objective is, first, to find Minister Hylas and, then, later, to kill Urza Nalmath. Handle the (unlikely) case where the player kills Urza Nalmath BEFORE going to the citadel to find Minister Hy
las.
For EASY, when Sir Gerrick appears, a hint appears telling Deoran to return to camp and recruit. But, it's possible Deoran is already at the camp. So, rather than make the player step off and back on, simply do the recruitment hinting right away. It just flows better.
In the unlikely event the player manages to kill Urza Mathin before visiting the river fort, Sir Gerrick will not appear. This is bad for the victory conversation and worse for the rest of the campaign.
I thought long and hard about how to fix this and decided to take my cue from the initial objectives which show two items. So, I made it so you have to do BOTH to win the scenario. If you kill Urza Mathin first, you still need to go find Sir Gerrick. I only needed to adjust one line to make it make sense, and it works better than simply having Sir Gerrick pop up out of nowhere.