I feel like I'm doing stuff wrong...Should I take those items that increase the difficulty/upgrading enemies? I took every single one so far and its getting a bit tough where I'm now.
Conquered east Asia and Europe's territories there, took Hawaii and Macedonia. Now I have the option to go for Babylon, Russia or Australia. I tried Babylon but kinda getting rekt there and Russia seems even harder with their units being 2x more or so, not to mention my units being lowered from the cold.
Should I prioritize upgrading some units over others or upgrade everyone equally?
Should I do double damage to enemies from having advantage from attacking despite it giving more Brave points for them to use skills?