Fallen Knight

Your maps lack: a well-paced storyline, the presence of cutscenes, interesting scripts, possibly puzzles or riddles, map design (but this is subjective), essentially, they can only be completed by playing as the Engineer class because other classes need more freedom. There are no challenging battles with computer-controlled opponents (the difficulty, or rather, the constant and endless attacks by computer-controlled opponents, is not challenging; it's just tedious, having to sit near the castle and block one-way portals with your units).