OSS-class(Vindraon pattern)battlecarrier

This is a fan-made ship I wanted to 3D model.
The Vindraon-pattern battlecarrier designated the OSS-class battlecarrier, is one of the largest Executioner-type capital ships that was developed by the defunct Covenant Empire. A rare sight when compared to other heavy carriers fielded by the hegemony, the battle carrier is feared by its foes for its space fighting capabilities.