I run Vader, Biggs, and Tie as my starting lineup under Executrix. I prefer using Ghost first because it debuffs and TLs on reinforcement, which makes sure my Empire ships are doing maximum damage and maxes my Biggs' protection, then I can go straight into the multi assist which is usually enough to take down the enemy Biggs. At that point it's a 4v2 that I can almost always win. I have Phantom as a backup later on in case my Biggs is about to die, but it rarely even gets to that point.