Right now, I'm playing through the campaign for the elves (the light ones). In my opinion, it's the most difficult. Especially missions 2 and 5. But I breezed through the dark elves' campaign. The gameplay is good, and you have a lot of troops. The main thing is to get the main hero, a powerful mage, and capture all the cities of the Stronghold faction as quickly as possible. And by the way, Shidara and Railag should be played in parallel! You reach the garrison, gather troops... There's a separate topic for that. But as for the elven campaign...