I'm stuck on the 4th mission for Agrael because there's no starting cutscene and all subsequent cutscenes with the deserting elves are missing, which means their numbers don't decrease throughout the game. I captured Erevel, but the quest wasn't completed, and the game continues. In the 4th mission for Isabel, I bought several artifacts in the artifact shop and collected a few more on the map, but when Godrick freed Isabel, she only had the Ring of Swiftness. And for Agrael, I always started all missions with an empty inventory. Why weren't the dragons removed from the 4th mission? The flag colors have only been corrected in the Refugee scenario, but it would also be good to correct the colors in the Maahir's Gambit and Diplomat scenarios. If you're going to fix it, why not also fix the icon and specialization of Alaron in this mission. I understand that the Nivalis team simply renamed Winrael to Alaron.
I just checked and found a bug in the script; it bugs out on difficulty levels below Veteran, but works on Veteran and Hero. Basically, if the script doesn't start, the dragons won't change. In general, if the starting cutscene doesn't play, you shouldn't expect to be able to complete the map; you can report it here right away. I tested on a high difficulty level, and sometimes I might not check for certain changes; the probability of bugs is high.
The number of carry-over artifacts is small; I only left the ones that can be obtained on the map in a serious battle, and not just good ones that are generated by merchants or in chests. Agrael can take boots at the very beginning of the campaign – but he won't take them off. Allowing characters to be equipped with a bunch of artifacts creates a serious imbalance. You could play the first mission for Rai'lag on Recruit, collect artifacts, and then easily defeat enemies later in the story on Hero.
The flag colors were lost; I fixed them, but the map editor doesn't really like single scenarios.
Here's the updated version; I restored the colors, and the "ship" loads on Warrior and Recruit –
Regarding Alaron, it's very interesting – what specialization should he have? I don't know how to create completely new heroes, and I don't really want to; there are already a lot of renamed knights and demons in the campaigns – do they also need new icons and abilities?