I'm going to start a fantasy campaign using cinematic unisystem, and right now I'm looking at the battle rules in AoD. Now I like the basic premise of the rules, but I would like them to be even more abstract. But I figured it would be smart to run my changes by you, the system experts, before I start playing the game. All comments and critiques are welcome.
In many ways this is a merge of the Firefight rules from Burning Empires and the battle system of AoD. In short I want to remove units from the core system. I don't want to have to track track them individually and I don't want to roll Con rolls for each and every unit every round. In fact I'm mainly interested in deciding who is winning and who is losing. The rest will be handled through narration.
To do this I want to introduce the notion of Disposition. Disposition is a measure of your advantage/disadvantage in the battle, and the first side to be reduced to zero disposition has lost. And losing can mean being butchered to the last man or the army just having lost their nerve. The important thing is that you have lost the battle. Innital disposition is equal to the general's success levels on an Int + Warfare (new skill in my game) plus various modifiers. This roll represents a general's ability to chose a good site, arrive there in good order etc. The modifiers are taken from the battle modifiers from AoD, and are applied directly as a bonus to the number of successes. E.g. the disposition of two equal armies, where one is in a fortified posistion, would be base successes for one side and base successes +2 (the bonus for fortifications found on the table in AoD) for the other side. The player tables remain unchanged (sniper and in the thick of it), and add bonuses as normal.
Every round the player characters get to risk life and limb to give the general bonuses to his battle roll (exactly as in the core rules). In addition the general gets to add his army's current disposition to his roll. The result of the battle round is found by comparing the number of successes of these battle rolls. If one general get a total of 5 successes and the other get a total of 7 successes, then the losers disposition is lowered by two.
Now, this means that only one side will lose disposition each round. But since disposition isn't the same as casualities, just your relative advantage in the battle, it is not as odd as it might sound. Both sides might have lost hordes of soldiers, but one side has lost more.
So how does this system look on paper? Any obvious flaws that I'm not seeing?