There are two ways. The first is in the descr_strat.
Change this:
Code:
character Hugues de_Payns, named character, male, leader, age 36, x 336, y 97
To this:
Code:
character Hugues de_Payns, named character, male, leader, age 36, battle_model Aztec_General,x 336, y 97
Aztec_General is an example, it needs to be a valid model entry in the battle_models.modeldb to work.
The second option is using script. The DocuDemon command:
Code:
Identifier: change_battle_model
Parameters: guild
Description: Changes the faction's leader/heir's battle model.
Sample use: change_battle_model england leader [model]
Class: CHANGE_BATTLE_MODEL
Implemented: Yes
Author: Mark
This will need to be done in campaign_script.txt in a monitor, the parameters are pretty self-explanatory. I've been told this is Kingdoms-only, wouldn't know since I don't mod base M2, but SS is based on Kingdoms to my knowledge anyways.
The second option is the best, since the first will only apply to the first faction leader, and not subsequent ones.