Quote Originally Posted by Lusted
No, you need to edit the soldier line. For the units with the 2 handed bug, replace the soldier entry on the soldier line with janisarry_heavy_infantry. Trust me, this works ingame, as the soldier line seems to affect only the animation unlike in RTW where it also affected the look of a unit.
Im guessing here

the lines that determine look are


armour_ug_levels 0, 1, 2
armour_ug_models Billmen, Billmen_ug1, Billmen_ug2

each level is determined by the level of the upgrades