The first thing I'd do is drop the Beam Arrays. Escorts aren't designed to fight from the side like Cruisers and Science so beams are a waste. Put a Dual Beam on the front (if you have Beam Overload) else another DHC. Put 2 Turrets on the rear: I like Disruptors, myself.
Remember to stay at least 5 KM away from the Warbirds at all times to avoid the shockwave. Get yourself some Engine Bats of some type as an emergency escape mode if they launch the big Torp Spread and you can't shoot it down.
Hazard Emitters to get rid of the plasma fires. Transfer Shield Strength to keep Shields regening high. Tactical Team for the immediate Shield side buff.