Much improved over the earlier version
The game is enjoyable even after playing through all of the scenarios several times. I find that the trick to solving the game is to identify the particular area in building that the guards rarely, if ever, venture into, e.g., the darkened corridor in #3, the bathrooms in #6, the lower right area in #10. And, I notice the AI of the guards drops once they lose line of sight of the assassin. I'd love it, if there was ever an upgrade, if the assassin could knock off guards as well.