|This article, ONI recon 111/M978 Polar Bear Ultra Heavy MBT, was written by ONI recon 111. Please do not edit this fiction without the writer's permission.|
The M978 Polar Bear is a UNSC Main Battle Tank.
The Polar Bear is an Ultra heavy Main Battle Tank used by the UNSC during the Syphodyte Campaign. It was successfull and was extremly powerful against syphodyte light tanks and infantry. They were unfortunatly scrapped due to the cost of their production.