As a note, they are actually not Gorgon Class Destroyers. Gorgons were the first ship of the destroyer class, and they were equipped with only 1 mac gun, not 2. What class of Destroyer this model actually falls under has never been shown, but the extra MAC gun, and the fact that Gorgons were 37 years old during the Heart of Midlothian event, I think we're looking at an entirely different class of ship, given the UNSCs tendency to scrap older, less efficient models (as seen with the Halcyon Class Cruisers)
Good work replicating the Heart of Midlothian. This seems to follow the model of the ship very nicely. I wonder if the Iroquois is the same class as the Midlothian. It's good to see you putting out more ships to fill the fleet. I know they all don't use Paris-class ships!