Quoting That one guy with that face+
I love it, but where did it come from, I never heard of it...
Good question. The Heart of Midlothian was a key destroyer in the Battle of Algolis. A couple years ago, a man by the name of Frank O'Connor wrote a short story, "Midnight in the Heart of Midlothian", which was turned into a 5(?) part animation that could be viewed via Halo Waypoint. The story followed an ODST named Michael Baird who finds out he has cancer. The doctors tell him the procedure should only take around an hour, but in the middle of his treatment, the Covenant overrun the ship. He wakes up to find out that he is one of the last people alive. In such an event, AI should activate a self destruct sequence, but it can't harm a living human. So Michael Baird tricks an Elite into running him through with an energy sword, and the AI is able to annihilate the fleet with the following explosion. The ODST was hailed as a hero for his selfless service.