1. Acquire a Hammer of Dawn and the Troika turret in War Machine
2. Take out the Hammer of Dawn by the turret
3. Press X + B + RT all at the same time. You should mount the turret
4. Get off the turret, if done correctly you should hear the sound of the Hammer of Dawn, if not, try again
5. Once that happens, you might be melee attacking repeatedly while hearing the Hammer of Dawn, sometimes you will only hear the Hammer of Dawn
6. Once you hear the sound, take out ANY other weapon
7. Keep on melee attacking, you will be going blood spray