A brig is a 29 meter long hull with 22 cannons. The Amsterdam is a 39 meter hull with 40-18 ponders. Not only longer but wider and taller. The Wicked Wench is 42 meters long. The HMS Unicorn is 42 meters long, is a real ship, and carries 32-9s. These ships are 3-4 times the size of a brig but you think they should not even have twice as many guns of the same caliber.
Here is a good match. The Postillionen is a real frigate of 40 meters that carries 20-12s. If a brig should carry 18s then the Postillionen should carry 24s. Following that logic means that the HMS Victory should be carrying the Flying Dutchmans cannons.
Here is a good match. The Postillionen is a real frigate of 40 meters that carries 20-12s. If a brig should carry 18s then the Postillionen should carry 24s. Following that logic means that the HMS Victory should be carrying the Flying Dutchmans cannons.