It struck me as odd that whilst Civ4 has a number of religions, it omits the Sikhs, when Sikhism is the 5th largest organised religion in the world. Why is that? It's especially odd given that Sikhs are an extremely martial race, with the elite Nihang mirroring many aspects of the ancient Spartans. Surely ideal for a game like this? There are numerous special units they could have too such as the Akalis (immortals), who were unbelievably ferocious warriors. They later developed into the Nihang warriors, who can be seen wandering fully armed around Punjab even today (N W India). On a weapons basis they ALL carry swords, but many carry Chakras and spears. All Akali were mounted, and many (most?) Nihang are. Today they practice the Sikh martial art of Gatka, which is a somewhat watered down version of the original military training of the Nihang from 200 years ago. The Sikhs were also the only Indians to beat British forces regularly on the battlefield (better sharper weapons, better armour, and more ferocious). Small numbers of them often defeated much larger Mughal, Persian and Afghan armies. Surely a no brainer for the next add on? They also have a couple of obvious leaders for use in the game: the warrior Emperor, Maharaja Ranjit Singh, and also General Akali Phula Singh who is a very well known and respected leader of the Nihang from about 200 years ago. Even the Emperor bowed to the general's authority.