It's a battle between Alicorn and the strike force made of the four cruisers, LRSSG, and Marigold. Well, with Trigger in there, I doubt that an additional warship is necessary. Regardless, Alicorn will target Marigold first with railguns since it makes sense to think that the biggest ship in the fleet is the fleet flagship. Unless LRSSG destroys the railguns before they can fire, there's not much hope for Marigold to survive the battle.