Merrenat Naval Base was a major COG military base dating back to the Era of Silence. It was design to outlast a UIR siege. It housed a training area for C Company of the 26th Royal Tyran infantry to take part in Operation Leveler during the Pendulum Wars. After the sinking of Jacinto, a COG Marine recon team was sent to Merrenat to find half of the Imulsion tanks left from Stranded scavengers. The base was near an airstrip and Port Farrall The underground complex of the base was considered a maze and hosted an old armory with Pendulum Wars supplies and a pack of Feral dogs.