4 catapults, 6 ballista, 20 cannons on each war ship. All war ships can carry maximum of 5,000 men, 1,000 horses, and 2 tons worth of cargo. Cargo ships can each carry 3 tons of cargo.
Castle size - tallest tower is 350 meters tall, other towers are around 200 meters, outer walls are 100 meters tall, inner walls are 150 meters tall, keep is 170 meters tall. Dragon pit inside of an extinct volcano nearby. Great hall has 70 halves, double that of Harrenhal. The entire castle spans an island that compares to the entirety of the Westerlands, the castle taking up half of the space, the rest is the extinct volcano