you have to use fighter class star fighters for this. Heros with fighter class ships do not count unfortunately such as Luke, Poe and Iden.
you can do this in star fighter assault or hero showdown. personally found starfighter alot more easier as more heros can spawn during one game. I found any millennium falcon, Iden, Tie fighter advanced and kylo rens ship more easier to defeat as a fighter.
found being imperials and Separatist better for the use of over barrage, and torpedos as you tail gate them.