What about a cruiser with a dreadnought level main weapon, quarian-geth engineered Hyper Collider maybe, smaller and only able to fire in a beam and not kill in one shot like the Flagships? So effective at capitol ships and taking fire but not really much else. possibly the only ship able to take a direct hit from a Hyper Collider and survive probably be dead in the water out of power but in one piece.

Would make sense if they built such a ship having had one of their number working on the normandy which was mostly cerberus tech.