The general (and captain) model is in the descr_characters file, you will need to check if every faction in that file has an entry in the modeldb file, eg in that model's section:
Code:
type named character
actions moving_normal, moving_quickmarch, garrison, assault, attack, besiege, entrench, ambush, diplomacy, bribe, exchange, building_fort, building_watchtower
wage_base 200
starting_action_points 80
faction venice
dictionary 15
strat_model southern_general
battle_model Northern_General
battle_equip gladius, chainmail shirt helmet and rectangular shield
Code:
type general
actions moving_normal, moving_quickmarch, garrison, assault, attack, besiege, entrench, ambush, exchange
wage_base 0
starting_action_points 80
faction venice
dictionary 15
strat_model southern_captain
battle_model Northern_Captain
battle_equip gladius, chainmail shirt helmet and rectangular shield
The body guard of the general is defined in the EDU file.