During a patrol gone awry, Knight-Sergeant Merric returned with critical injuries from exposure to a nuclear warhead detonation. Due to his advanced radiation poisoning, the loss of his left arm and leg, severe internal trauma, and the left hemisphere of head being severely burned, Knight-Captain Cade was forced to attempt emergency surgery upon receiving Merric, in an attempt to save his life, with Merric dying three hours later, in which his remains were later incinerated as per regulations. Lancer-Captain Kells was astonished that he survived his injuries long enough to make it back to the Prydwen and deliver his report. The sacrifice that he made for the sake of the mission is a testament to his dedication and loyalty to the Brotherhood. A memorial service for him took place on the ship's forecastle at sunset.
Merric is mentioned only in Fallout 4.