During the late 16th century, would a large fleet (we'll just use the fleet from Lepanto: 206 galleys, 6 galleasses, ~30,000 troops and 1800 cannon) be able to sail through the straits, into the Golden Horn, break down the walls with broadsides, and take the city by storm, or would it just be a horrendous, murderous death trap for the attackers?