Balance in Heroes 5.

In my opinion, with the introduction of the Stronghold, the game balance has shifted downwards. Before that, I was satisfied with everything. My friend and I (we have the same level of experience) practiced many times in Heroes of Might and Magic III, and we came to the conclusion that it is very difficult to defeat the Stronghold. The only option is to use Sylvan with expert defense, but if the Stronghold also has the same defense, it's useless. They have an advantage in initiative and a large army... of course, it's not just about defense, but still, I didn't notice such an imbalance before. And also, fire arrows play a very big role, and they are too easily accessible. I am against it.