Operation Skyhook was a Rebel operation to stole the Death Star I plans. As the Rebels stole the planes they escaped to their outpost, but were ambushed by the imperial fleet above tatooine.
Just like in the video game Empire at War, there was a battle which included several Star Destroyers and frigates. When the Tantive IV which carried the plans tried to escape Vader (being a soldier not a politician) sent out his black squadron and some tie bombers to try and disable the engines on the Tantive before moving in with the Star Destroyer for the kill.
Now this scenario would have the imperial player focus on destroying the CR90s aft section in a limited set of turns.
This is a rough sketch of my idea of epic play, which could potentialy be joined by the rpg Edge of the Empire- since the Age of Rebellion is coming out, which will focus on the war aspect of Star Wars
Feel free to expand on the content