Someone want to tell me how it is that I am meant to survive the first two minutes of this mission after reaching the city? Just reaching the city is an impossible task that only works by knowing about that stupid boat. I am playing on moderate, and no matter what I try, I cannot get past the first assault. No research or combination of units works when I am in base-castle age with a few dozen twits, and the enemy hits me with a post-imperial horde twice the size of my own.
You can’t fight them, you can’t wait them out while you upgrade and reinforce; they come through the walls any way you try it, and it is immediately over.
I tried looking up what others have done, which led me to try sending my whole starting military to take out the red khans, but that did not work, because red has a billion troops to start with, and my guys barely take out the first khan before they just die. Of course, I cannot go for a second attempt, because using my whole starting military means that by the time they are all dead, my city is already half destroyed by the previously mentioned post-imperial horde.
I was annoyed in the last mission, because I was winning (after cheesing the crap out of it) and the stupid wonder self-destructs immediately if I do not hold it when I take out green - and yes, this is after the supposed update to keep that from happening. But mission 3 is no bug; it is a feature that you are destroyed in the first two minutes of the siege. I get the idea of having a harder mission, but I should be able to survive the first blasted wave.