The Ferril Provincial Army started off with a total of around 30,000 mechs and 13 expert mechs.
The attacking Vulcanites had every reason to be confident. They were fighting on their home ground, their fleet was tight and condensed to just their combat vessels, the professionalism and development of their military mech divisions exceeded that of any private armed force and they were led by old, veteran war heroes who achieved great success in defeating enemy humans in the past!
Yet.. the Ferrils miscalculated. Not every enemy human force is the same. Some of them were better-equipped than most. Others had a lot of friends who could not be provoked.
As for the Golden Skull Alliance? The Larkinson Clan alone was a giant anomaly in itself. The apparent strength it possessed on the surface was a complete smoke screen. The infamous clan hid one surprise after another.