I just got PTW, but haven't loaded it yet. Can you guys tell me a few things? How do the new units effect gameplay? I almost always play the romans because I like the UU. For me, I use them up until cavalry. I stop building them when Knights are around, but will still use the legions to attack because I usually have so many of them. With the inclusion of the Midieval Infantry, how will my tactics be effected? Will it negate the use of my legions and force me to build the new infantry?