Verzhak’s company is on the champion.

I've wanted to complete all the campaigns in Heroes 4 on Champion difficulty for a long time, and I recently almost did it. Currently, I've completed all campaigns except for Verzhak's campaign (Might, original heroes). I remember a long time ago, I was searching for information on this topic and came across the opinion that it's impossible (if you don't know, try it). However, someone did mention that they completed this campaign on Champion difficulty, but they didn't say how they did it. Yesterday, after struggling for 2 hours, I finally found a way to capture the first Castle on Champion difficulty and have already completed the first mission. I'm interested in who else has tried this, what conclusions they've come to (is the myth of its impossibility still true, or not), and if they succeeded, I suggest they share their tactics later (there might be different ways, but I've only found one so far). But please, don't immediately write how you completed it, so that those who haven't tried or haven't succeeded can figure it out for themselves. P.S. Hello everyone, I'm new to your forum. Sorry if this topic has already been raised; searching for "Verzhak" didn't yield any results. P.P.S. The Heroes version is "Whirlwinds of War," but it seems there's no difference in this case.