Commands & Colors Medieval - Expansion 1 Crusades Mid-Eastern Battles 1IMPORTANT: In order to play the scenarios in this Crusade expansion, you will need a copy of the Commands & Colors Medieval game. Most of you have already discovered that GMTs Commands & Colors is an expandable game system. Like its older sister, Commands & Colors Ancients and brother Commands & Colors Napoleonics, Commands & Colors Medieval is going to be much, much, much more than what was originally presented in GMTs Medieval core game. As such,