I completed the first two missions using a hero. I couldn't complete the third. I tried various options, with troops – practically without any losses. But I still couldn't pass it. There's no chance. I can't play on a lower difficulty; I'm used to setting the highest bar. I still haven't figured out what the trick is in the third mission and how to get out of it.
First, you need to get logistics.
Objectives: mage's hut - bushes nearby - 5 huts. You need to gather all the troops. Gather everything as much as possible; it's possible.
If you're playing as a hero, you'll figure it out.
Added 4 minutes later
Let's see what this campaign is. According to the description, it's very interesting.
