Ogo

Many years have passed since this campaign was created. I only recently found it, played through it, and stumbled upon an interesting "fact" about how to complete the final mission in any case (although someone may have already discovered this). At the beginning of the mission, use Dalom to cast "Dark Ritual" and then go to fight with Vaniel. If Vaniel dies, the campaign is automatically completed, because after casting the ritual, Dalom has no movement points left.
For me, this was quite a discovery...