(Hero - Rogue) in Heroes 4

This is definitely a "+", especially the movement speed! It's a useful asset!
But a Rogue is a Rogue, why turn him into a secondary hero, whose only benefit is movement speed and vision (and there isn't always a sea around)? :)

The trick is that he isn't a main hero, or even a secondary one. He's a lone wolf, and you hire him when you already have 2 heroes. This isn't a pointless waste of money, but a far-reaching plan that will pay off many times over. This hero's task isn't to fight in open battles! He should stealthily sneak up to buildings occupied by the enemy, capture them, and then retreat. This is especially effective with gold mines. Maybe I'm wrong, but the Rogue's role is to strike not on the battlefield, but on the map, stealing valuable artifacts and giving them to his main leader, and placing his color's flag on buildings, often leaving the neutral guard untouched. I call this an economic strike. As a result, the enemy may simply not have enough money for the same monsters. As a result, they won't appear on the battlefield! Or even better: due to this subversive activity, the opponent won't build an important building, such as a Castle or a Menagerie, etc. So, the Rogue is: 1. A scout. 2. A thief of artifacts and resources. 3. Most importantly: a hero-saboteur. That's his destiny... And yet, people criticize him for being useless! :( :( :( :(