In Civ1 there is that bug in the game that allows a knight to beat a Riflemen, a trireme to beat a transport, or a Legion to beat a musceteer. Civ2 is more consequent. The strengt of the unit decides the beat-point. Civ 3 is a little like Civ1 in that matter, but an archer can hardly beat a pikeman. Someone said it was a "matematical formula" to it. What about that?