LewsTherin said:
Why not a Total War style game in the Old Testament? I'd play it.
Excellent. I see it as from Medieval 2 where they introduced heroes. The people of Israel would be almost unfairly outnumbered but through tactics and the badassery of some of their heroes they stand a good chance at victory.
Alternativly, a Total War game of Heaven Vs. Hell. A 3 tier map. Heavan, Earth, and Hell. The goal is to defeat your adversary (naturally Hell if playing as Heavan and vice versa). Where Earth comes into play is that in order to get to the other tier (1 getting to 3 but you have to go through tier 2) you have to go through a gate.
From the Hell Gate come thousands of demons intent on destroying humanity. From Heavan come the angels to protect them. The game starts in the middle of a war on Earth and it takes a few turns before humanity realizes the threat and unites against it. Human armies would be vastly inferior to the army of Hell and as such wouldn't be able to survive if the angels wouldn't come down to save them. Hell's army would be physically stronger but lacking angelic wings they wouldn't be as mobile.
As for recruiting and all that let me sleep on it as I've done all the thinking I can at this hour (just past 1:00am).