On Yavin IV (Revenge of the Empire), I keep getting stuck. It's usually either at the very end (killing the Rebel leaders, the Bothan spies) or defending the pool for two minutes. Do the turrets make a huge impact? The most recent time I got to the slaying of spies, I got two of them. I had 25 reinforcements left, and I was about to win. There was just one problem: The last Bothan spy was under the ground. He was back where the other two had been, but below the floor! There's no visible way to get down there...is there? Below the floor in the Rebel base on Yavin?