I like this addon but (because Im far from being fluent in German) I thought its gonna work like that:
Armorer is taking one coal and one iron (just like previously) and he is immediately making both sword and shield.
Animation: He is leaving armory, throwing sword near flag, coming back to armory, 2 sec later he is out again and he is throwing shield
Yes, the production time of 1 sword + 1 shield is the same, that is how it is supposed to work. But since the consumption rate of iron
and coal is only 50% of what it is normally, you can now build about 2 armories for every iron smelter instead of just one, so you are
indeed able to produce soldiers twice as fast.