1,
The Executor: Admiral Ozzel dies and Captain Piett gets promoted
2,
The Avenger and Executor: Captain Needa looses sight of the Falcon and travels to the Executor to apologise to Lord Vader, but fails.
3,
The Executor: Admiral Piett gets reminded on how he got promoted and he breaks up the fleet to look for the Falcon.
4,
ROTJ, The Executor: Admiral Piett and his posse takes a dive into the Death star as his shields have been taken out by 2 A- wings and another rams into it's command bridge.
:D