Auto-translated
You need harpies and rogues... You can defeat everyone with them, plus chaos magic. Use invisibility on the rogues and attack with magic; destroy slow-moving neutral creatures with harpies – they have retaliation. At the beginning of the game, build heroes (+ upgrade) and harpies (+ upgrade) first, then gather money and build a castle (by week 2, you should have a castle + capitol at 100%). Good luck!
What rogues are you talking about in "Fortress"? Didn't you bother to read the previous messages carefully? There aren't that many of them (only one)...