AI battles

[Seyduna]

@Aradan:

Spoiler Alert, click show to read: 

The second value of stat_health can be used to improve the balance of auto-resolve. Certain units like chariots are currently overpowered in it, while other like mounted and missile units are underpowered. Here follow some rough suggestions on how to assign sec hp values in order to balance auto-resolve more evenly:

* Animal units stay as they are.
* All other units get 5 sec hps.
* Units with 2 or more prim hps get -1 sec hp for each extra prim one.
* Missile units with low-medium missile attack get +1 sec hp.
* Missile units with medium-high missile attack get +2 sec hps.
* Mounted units with low-medium charge get +1 sec hp.
* Mounted units with medium-high charge get +2 sec hps.

Nice work there! Your suggestions are reasonable and I would like to see these in EB. It would nerf heavy infantry-based factions over cavalry or missile-based factions. I want to give it a try in my campaign but EDU file is so large to make changes.