Hello. I think there might be few bugs involving two super-artifacts from this campaign (Armor of the Damned and Cloak of the Undead King). This need to be confirmed or denied by legit gameplay, because I skipped the missions by using the code nwcredpill.

Here they are:
1. When you start mission "Wrath of Sandro" in Unholy Alliance campaign, Sandro should have the Armor and Cloak (that's good), but he appears to have duplicates in disassembled form. That's not good, because it gives you an unfair advantage.
2. When you finish this mission and start the next one (Invasion), multiple things can happen, depending of the state of artifacts at the end:
- assembled - they will transfer to Invasion. Duplicates still means unfair advantage.
- disassembled - they will be gone forever! In the worst case, you will lose everything.

Everything was tested only on Sandro, other heroes weren't tested.