UNSC The Heart of Midlothian (DD-366)

The UNSC The Heart of Midlothian (DD-366) was a Warrior-class heavy destroyer of the United Nations Space Command. Originally planned as the UNSC Cornwallis, DD-366 was instead named for a Colonial Military Administration auxiliary vessel that was destroyed in battle; the CMA The Heart of Midlothian had used its hull to intercept missiles heading towards an unarmed colony ship, sacrificing it and its crew and saving more than 2,000 colonists. 
The Heart of Midlothian (DD-366), UNSC