The V'gahnt-Zezne was a monster in any way. She was a battleship that might not be as well-maintained and up to date as the more modern orven vessels that were in service these days, but the Unspoken had cared for her as best as they could over the centuries.
All fourteen of her gigantic plasma cannon batteries were still in good condition relative to the rest of the ship. It was clear that the orven pirates had invested much in their maintenance and maybe even upgraded some of their parts in order to make them more effective.
The secondary and tertiary armaments were much less consistent in comparison. There were hundreds of each of them, and their firepower was significantly reduced so they didn't merit as much importance from the owners of the alien battleship.