One very slick way that Firaxis has helped alleviate end game carpets of doom is through the Armies system. While I think it's a brilliant addition to the Civ universe, there's two things that really bug me: 1. A naval unit, fleet, or armada is always displayed as one boat. Likewise with their terrestrial counterparts. My "simple" suggestion: When combined into a fleet, the model should be two boats. An Armada would display three. It would be very obvious visually that there's some serious naval hardware floating your way. (For land units, I would apply this same concept to apply to the tank, modern armor, and mechanized infantry.) The downside, of course, is that we would need a whole bunch of new combat animations created for the melee units. Especially the boats; land units have animations for killing 1-4 infantry soldiers, but boats only ever attack one boat. Ranged units just sort of blast their targets anyways, so this isn't as big a deal. 2. Why do carrier fleets not have increased air unit capacity? A carrier fleet should hold 3 or 4 air units, while an armada should hold 4 or 6. (Depends on balance.) I just cannot understand why I should sink hammers into just getting more defense and not denser air unit capacity! It feels like an oversight.