He has his lead engineer revamp the system to use the Avenger cannon setup as a shield, instead. When they arrive at the system, his opponent engages a previously unknown FTL capability to close quickly, denying them a chance to prepare. Good luck leads Glimmerhad's crew to pinpoint their course and knock them out of warp early, returning the favor.
In the first pass, Glimmerhad disregards his weakness and his opponent's strength, and charges straight for the battleship. At the last minute he pivots the ship up, bottom-forward, and hurls anti-capital missiles at a high rate from close range. He passes above the battleship, dealing and taking significant damage.
In the second pass, Glimmerhad activates the modified shield and charges straight in again. This time, he angles right and whips hard to the left at the last minute, passing just to the injured side of his opponent. One of his reactors is destabilizing, so he ejects it right into the path of the oncoming battleship. The two ships nearly collide, and the force of the ejection helps spin Dauntless
around to directly face the battleship's stern.
Heavy weapons fire disables the battleship's propulsion. It's dead in the water.
He begins to prep for storming the battleship, but Ironwood's ally arrives in a battered heavy cruiser. Glimmerhad realizes he can't handle both ships (the battleship can quickly repair with nanites if left alone) and survive. He gives the battleship's crew minutes to evacuate the ship, and to save the hostages in exchange for their own lives. Ironwood attempts to escape in an executive yacht, but is shot and disabled. He asks for mercy toward his crew and self-destructs the yacht, with all hostages onboard.
Glimmerhad bluffs the heavy cruiser into retreat.
It turns out the whole thing was a simulation to better the Valencian military. Glimmerhad sits in his room and receives word of the Lightbringer's system-split phenomenon. He realizes the Valencian's terrible position, and ends the story with the same phrase he began: "Well...this is going to be quite the challenge."