Well, exactly. 
Everything Keldr says works like a charm when I try it on the lower levels, but I tend to be playing these 100k games at Demigod/Deity and on larger sized maps, too. So, there's no way to stop at Gunpowder; I just continue onto Military Tradition.
Otherwise, great advice.
I may end up just completing a Chieftain game for now; I can't rush a high-level 100k game because it is a bit like a histographic win, actually...a culmination of battle, strategy, research, and culture. Too complicated to get a quick win from.
So I've just swapped the level. Large/100k/Chieftain, in addition to the Deity game I'm already doing. I'll leave Demigod alone for now, along with Regent.

Everything Keldr says works like a charm when I try it on the lower levels, but I tend to be playing these 100k games at Demigod/Deity and on larger sized maps, too. So, there's no way to stop at Gunpowder; I just continue onto Military Tradition.
Otherwise, great advice.

I may end up just completing a Chieftain game for now; I can't rush a high-level 100k game because it is a bit like a histographic win, actually...a culmination of battle, strategy, research, and culture. Too complicated to get a quick win from.
So I've just swapped the level. Large/100k/Chieftain, in addition to the Deity game I'm already doing. I'll leave Demigod alone for now, along with Regent.