I had a big long explanation typed out, but when I clicked on Submit, it deleted everything and put "Gimp" in there.
For my army, I just have Default selected for most of the weapons. The only ones that I set are for my archers that use a bow with a different type arrow (i.e. soulbound). I usually complete with like 18 minutes left when I'm running a full army, or like 3 minutes left when I'm running others through with just 4 of my guys. I'm sure I can cut that down quite a bit if I went through every character and updated their weapons.