Check also descr_character :

; type indicates a new character type
;
; must be followed by id name string (phrase)
;
; faction indicates one or more factions which use the following
; strat_model descriptions, valid entries are these:
;
; romans julii, romans brutii, romans scipii, macedon,
; egypt, seleucid, carthage, parthia, pontus, gauls,
; germans, britons, armenia, dacia, greek_cities, numidia,
; scythia, spain, thrace, slave
;
; if a given faction is not present in a given character
; type listing, that faction cannot use characters of that
; type - so not all factions have access to all character
; professions
;
; dictionary specifies dictionary entry for character type name
;
; note that there is one dictionary entry per type per
; faction set, allowing different names for the same
; character type - ie a diplomat barabarian could be a
; 'chieftain', while a roman might be a 'legatus'
;
; strat_model model to represent the character on the strategy map
;
; battle_model model to represent the character on the battle map (optional)
; battle_equip equipment character has on the battle field must be followed by a weapon type,
; (not missile weapon type) and armour type