I am getting really frustrated here. I kill all the tleilaxu, the windtraps and vats and turrets and all, go to the palace and they say they are sending reinforcments. I kill off the leeches and stuff, and now there is explosion after explosion until eventually my palace dies and I lose. What else do I need to do to finish this mission? There is not a single tleilaxu unit on the map except for a second when they come and explode. grrrr.