Another non-obvious thing Larian should probably explain better is that a War factory can only produce a number of units equal to the gold income of that country. Why? I don't know? It doesn't matter how much gold the units actually cost. So place your factories on the 2 and 4 countries on the strategy map.
I actually think this is a great feature that actually adds strategy to the turn map. Yes it is subtle and when you bump into it you'll be say ..."huh...?"
But it prevent me from taking one nation close to your capital, and pumping out 60 gold worth of units and crushing your capital. Think of the gold income on the map as any one country's productivity/economy. Crap economy = crap production capabilities. It makes the regions on the map with 4 or 5 gold income a place to dig in and have a forward base of operations as you can produce enough units to be threatening or to keep your expansion pace up.
