[thejeff]

Ok, assuming it is based on the commander numbering thing and it follows the usual forward/reverse random sequence, an army with a very early commander and a very late commander should always move before an army with only a middle commander.
If this determines where the battle happens it should be testable.


As for commander unit ids, they are handed out in order, but I suspect as usual this might be done in nation or reverse nation order. No evidence for that, just an assumption. It also reuses numbers of dead commanders so it gets more confusing as the game goes on.