The Mission is missing one complete level because the mission failed at that point without any reasons. i tried it with "actor has to survive" on and off, both didnt work. i tried with deleting the enemies. Didnt work. There was no obvious reasons why it didnt work. even when i deleted Liane Forbes the mission failed. Everytime the player moved upstairs mission failed. Then i tried not to walk upstairs = Mission failed. So sorry but its looks a little bit weird when one parts misses. But i tried so many things...