Speaking of upgrades, I hope they keep all the attack and defence upgrades, armour upgrades and shot upgrades of C1. Those are really important and help make the game work in important ways. Formation bonuses and upgrade bonuses help the game overcome the phenomenon of strategic attenuation. "Strategic attenuation" in this context is just a fancy way of saying this. By the time you assemble 36 pikes in a formation and march them to the enemy base he will have more than 36 pikemen waiting to defend. He might have a two 36-man formations. You can only overcome this strategic attenuation with upgrades or sometimes manoeuvrings. When you go head to head with superior numbers you can only win with those quality upgrades - attack, defence, armour and so on. You often find once you go beyond the mid-point between your base and the enemy base you are fighting superior numbers. You need more upgrades to win such battles head to head. Of course, it can be possible to flank, avoid his army and go into the soft underbelly of the base and kill mines and peasants. That's the other way to do it. But then good players can start fences and walls to stop flank attacks on the base.