So far all that you've guys mentioned here has helped me A LOT.

Yet when I try to fight a battle with my army that has a Hoplite Spartan unit which I edited to play on the side of the Macedons, it ALWAYS crashes.

So far, I think I've edited all of the required files correctly, here they are :-

export_descr_unit

type greek hoplite spartan
dictionary greek_hoplite_spartan ; Spartan Hoplites
category infantry
class spearmen
voice_type Medium_1
soldier greek_hoplite_spartan_pylos, 40, 0, 1.3
officer roman_centurion
officer roman_standard
attributes sea_faring, hide_forest, can_sap, very_hardy
formation 1, 1, 2, 2, 5, square, phalanx
stat_health 2, 0
stat_pri 16, 8, no, 0, 0, melee, simple, piercing, spear, 25 ,1
stat_pri_attr spear
stat_sec 16, 4, no, 0, 0, melee, simple, piercing, sword, 25 ,1
stat_sec_attr no
stat_pri_armour 3, 9, 5, leather
stat_sec_armour 0, 1, flesh
stat_heat 2
stat_ground 2, 0, 0, 0
stat_mental 14, disciplined, highly_trained
stat_charge_dist 30
stat_fire_delay 0
stat_food 60, 300
stat_cost 2, 1220, 460, 130, 190, 1220
ownership greek_cities, macedon


export_descr_buildings

building barracks
{
levels muster_field militia_barracks city_barracks army_barracks royal_barracks
{
muster_field requires factions { barbarian, ct_carthage, eastern, parthia, egyptian, greek, roman, }
{
capability
{
recruit "carthaginian city militia" 0 requires factions { spain, }
recruit "barb infantry briton" 0 requires factions { britons, }
recruit "barb infantry dacian" 0 requires factions { dacia, }
recruit "barb infantry gaul" 0 requires factions { gauls, }
recruit "warband spear german" 0 requires factions { germans, }
recruit "barb horse archers scythian" 0 requires factions { scythia, }
recruit "carthaginian city militia" 0 requires factions { carthage, }
recruit "numidian javelinmen" 0 requires factions { numidia, }
recruit "east infantry" 0 requires factions { eastern, }
recruit "egyptian nubian spearmen" 0 requires factions { egyptian, }
recruit "greek hoplite militia" 0 requires factions { greek, }
recruit "roman city militia" 0 requires factions { roman, }
}
construction 2
cost 600
settlement_min town
upgrades
{
militia_barracks
}
}
militia_barracks requires factions { barbarian, ct_carthage, eastern, parthia, egyptian, greek, roman, }
{
capability
{
recruit "carthaginian city militia" 0 requires factions { spain, }
recruit "carthaginian infantry" 0 requires factions { spain, }
recruit "barb infantry briton" 0 requires factions { britons, }
recruit "barb infantry dacian" 0 requires factions { dacia, }
recruit "barb infantry gaul" 0 requires factions { gauls, }
recruit "warband spear german" 0 requires factions { germans, }
recruit "barb horse archers scythian" 0 requires factions { scythia, }
recruit "warband sword briton" 0 requires factions { britons, }
recruit "warband sword gaul" 0 requires factions { gauls, }
recruit "warband axe german" 0 requires factions { germans, }
recruit "warband axe scythian" 0 requires factions { scythia, }
recruit "warband falx dacian" 0 requires factions { dacia, }
recruit "carthaginian city militia" 0 requires factions { carthage, }
recruit "numidian javelinmen" 0 requires factions { numidia, }
recruit "carthaginian infantry" 0 requires factions { carthage, }
recruit "numidian desert warriors" 0 requires factions { numidia, }
recruit "east hillmen" 0 requires factions { eastern, }
recruit "east infantry" 0 requires factions { eastern, }
recruit "egyptian nubian spearmen" 0 requires factions { egyptian, }
recruit "egyptian nile infantry" 0 requires factions { egyptian, }
recruit "greek hoplite militia" 0 requires factions { greek, }
recruit "greek levy pikemen" 0 requires factions { seleucid, macedon, }
recruit "warband falx thracian" 0 requires factions { thrace, }
recruit "greek hoplite" 0 requires factions { greek_cities, }
recruit "roman city militia" 0 requires factions { roman, }
recruit "roman hastati" 0 requires factions { roman, } and not marian_reforms
recruit "roman infantry auxillia" 0 requires factions { roman, } and marian_reforms
}
construction 3
cost 1200
settlement_min large_town
upgrades
{
city_barracks
}
}
city_barracks requires factions { barbarian, ct_carthage, armenia, pontus,, egyptian, greek, roman, }
{
capability
{
recruit "carthaginian city militia" 0 requires factions { spain, }
recruit "carthaginian infantry" 0 requires factions { spain, }
recruit "spanish scutarii" 0 requires factions { spain, }
recruit "barb infantry briton" 0 requires factions { britons, }
recruit "barb infantry dacian" 0 requires factions { dacia, }
recruit "barb infantry gaul" 0 requires factions { gauls, }
recruit "warband spear german" 0 requires factions { germans, }
recruit "barb horse archers scythian" 0 requires factions { scythia, }
recruit "warband sword briton" 0 requires factions { britons, }
recruit "warband sword gaul" 0 requires factions { gauls, }
recruit "warband axe german" 0 requires factions { germans, }
recruit "warband falx dacian" 0 requires factions { dacia, }
recruit "barb warguard gaul" 0 requires factions { gauls, }
recruit "barb warguard briton" 0 requires factions { britons, }
recruit "barb warguard dacian" 0 requires factions { dacia, }
recruit "warband dhaxe german" 0 requires factions { germans, }
recruit "warband axe scythian" 1 requires factions { scythia, }
recruit "carthaginian city militia" 0 requires factions { carthage, }
recruit "numidian javelinmen" 0 requires factions { numidia, }
recruit "carthaginian infantry" 0 requires factions { carthage, }
recruit "numidian desert warriors" 1 requires factions { numidia, }
recruit "carthaginian medium infantry" 0 requires factions { carthage, }
recruit "east hillmen" 0 requires factions { eastern, }
recruit "east infantry" 0 requires factions { eastern, }
recruit "east heavy infantry" 0 requires factions { armenia, }
recruit "east hoplite" 0 requires factions { pontus, }
recruit "egyptian nubian spearmen" 0 requires factions { egyptian, }
recruit "egyptian nile infantry" 0 requires factions { egyptian, }
recruit "egyptian infantry" 0 requires factions { egyptian, }
recruit "greek hoplite militia" 0 requires factions { greek, }
recruit "greek levy pikemen" 0 requires factions { seleucid, macedon, }
recruit "warband falx thracian" 0 requires factions { thrace, }
recruit "greek hoplite" 0 requires factions { greek_cities, }
recruit "greek pikemen" 0 requires factions { thrace, seleucid, macedon, }
recruit "greek hoplite elite" 0 requires factions { greek_cities, }
recruit "greek hoplite elite" 0 requires factions { macedon, }
recruit "roman city militia" 0 requires factions { roman, }
recruit "roman hastati" 0 requires factions { roman, } and not marian_reforms
recruit "roman infantry auxillia" 0 requires factions { roman, } and marian_reforms
recruit "roman princeps" 0 requires factions { roman, } and not marian_reforms
recruit "roman legionary cohort i" 0 requires factions { roman, } and marian_reforms
}
construction 4
cost 2400
settlement_min city
upgrades
{
army_barracks
}
}
army_barracks requires factions { ct_carthage, armenia, pontus,, egyptian, greek, roman, }
{
capability
{
recruit "carthaginian city militia" 0 requires factions { spain, }
recruit "carthaginian infantry" 0 requires factions { spain, }
recruit "spanish scutarii" 0 requires factions { spain, }
recruit "barb infantry briton" 0 requires factions { britons, }
recruit "barb infantry dacian" 0 requires factions { dacia, }
recruit "barb infantry gaul" 0 requires factions { gauls, }
recruit "warband spear german" 0 requires factions { germans, }
recruit "barb horse archers scythian" 0 requires factions { scythia, }
recruit "warband sword briton" 0 requires factions { britons, }
recruit "warband sword gaul" 0 requires factions { gauls, }
recruit "warband axe german" 0 requires factions { germans, }
recruit "warband falx dacian" 0 requires factions { dacia, }
recruit "barb warguard gaul" 0 requires factions { gauls, }
recruit "barb warguard briton" 0 requires factions { britons, }
recruit "barb warguard dacian" 0 requires factions { dacia, }
recruit "warband dhaxe german" 0 requires factions { germans, }
recruit "warband axe scythian" 1 requires factions { scythia, }
recruit "carthaginian city militia" 0 requires factions { carthage, }
recruit "numidian javelinmen" 0 requires factions { numidia, }
recruit "carthaginian infantry" 0 requires factions { carthage, }
recruit "numidian desert warriors" 1 requires factions { numidia, }
recruit "carthaginian medium infantry" 0 requires factions { carthage, }
recruit "carthaginian heavy infantry" 0 requires factions { carthage, }
recruit "numidian legionaries" 0 requires factions { numidia, }
recruit "east hillmen" 0 requires factions { eastern, }
recruit "east infantry" 0 requires factions { eastern, }
recruit "east heavy infantry" 0 requires factions { armenia, }
recruit "east hoplite" 0 requires factions { pontus, }
recruit "east hoplite brazen shield" 0 requires factions { pontus, }
recruit "east legionary" 0 requires factions { armenia, }
recruit "egyptian nubian spearmen" 0 requires factions { egyptian, }
recruit "egyptian nile infantry" 0 requires factions { egyptian, }
recruit "egyptian infantry" 0 requires factions { egyptian, }
recruit "egyptian elite guards" 0 requires factions { egyptian, }
recruit "greek hoplite militia" 0 requires factions { greek, }
recruit "greek levy pikemen" 0 requires factions { seleucid, macedon, }
recruit "warband falx thracian" 0 requires factions { thrace, }
recruit "greek hoplite" 1 requires factions { greek_cities, }
recruit "greek pikemen" 0 requires factions { seleucid, macedon, }
recruit "greek hoplite elite" 0 requires factions { greek_cities, }
recruit "greek hoplite elite" 0 requires factions { macedon, }
recruit "greek royal pikemen" 0 requires factions { macedon, }
recruit "greek silver shield pikemen" 0 requires factions { seleucid, }
recruit "greek hoplite spartan" 0 requires factions { greek_cities, }
recruit "greek hoplite spartan" 0 requires factions { macedon, }
recruit "greek bastarnae" 0 requires factions { thrace, }
recruit "roman city militia" 0 requires factions { roman, }
recruit "roman hastati" 0 requires factions { roman, } and not marian_reforms
recruit "roman infantry auxillia" 0 requires factions { roman, } and marian_reforms
recruit "roman princeps" 0 requires factions { roman, } and not marian_reforms
recruit "roman legionary cohort i" 0 requires factions { roman, } and marian_reforms
recruit "roman triarii" 0 requires factions { roman, } and not marian_reforms
recruit "roman legionary cohort ii" 0 requires factions { roman, } and marian_reforms
}
construction 6
cost 4800
settlement_min large_city
upgrades
{
royal_barracks
}
}
royal_barracks requires factions { seleucid, roman, }
{
capability
{
recruit "carthaginian city militia" 0 requires factions { spain, }
recruit "carthaginian infantry" 0 requires factions { spain, }
recruit "spanish scutarii" 0 requires factions { spain, }
recruit "barb infantry briton" 0 requires factions { britons, }
recruit "barb infantry dacian" 0 requires factions { dacia, }
recruit "barb infantry gaul" 0 requires factions { gauls, }
recruit "warband spear german" 0 requires factions { germans, }
recruit "barb horse archers scythian" 0 requires factions { scythia, }
recruit "warband sword briton" 0 requires factions { britons, }
recruit "warband sword gaul" 0 requires factions { gauls, }
recruit "warband axe german" 0 requires factions { germans, }
recruit "warband falx dacian" 0 requires factions { dacia, }
recruit "barb warguard gaul" 0 requires factions { gauls, }
recruit "barb warguard briton" 0 requires factions { britons, }
recruit "barb warguard dacian" 0 requires factions { dacia, }
recruit "warband dhaxe german" 0 requires factions { germans, }
recruit "warband axe scythian" 1 requires factions { scythia, }
recruit "carthaginian city militia" 0 requires factions { carthage, }
recruit "numidian javelinmen" 0 requires factions { numidia, }
recruit "carthaginian infantry" 0 requires factions { carthage, }
recruit "numidian desert warriors" 1 requires factions { numidia, }
recruit "carthaginian medium infantry" 0 requires factions { carthage, }
recruit "carthaginian heavy infantry" 0 requires factions { carthage, }
recruit "numidian legionaries" 0 requires factions { numidia, }
recruit "east hillmen" 0 requires factions { eastern, }
recruit "east infantry" 0 requires factions { eastern, }
recruit "east heavy infantry" 0 requires factions { armenia, }
recruit "east hoplite" 0 requires factions { pontus, }
recruit "east hoplite brazen shield" 0 requires factions { pontus, }
recruit "east legionary" 0 requires factions { armenia, }
recruit "egyptian nubian spearmen" 0 requires factions { egyptian, }
recruit "egyptian nile infantry" 0 requires factions { egyptian, }
recruit "egyptian infantry" 0 requires factions { egyptian, }
recruit "egyptian elite guards" 0 requires factions { egyptian, }
recruit "greek hoplite militia" 0 requires factions { greek, }
recruit "greek levy pikemen" 0 requires factions { seleucid, macedon, }
recruit "warband falx thracian" 0 requires factions { thrace, }
recruit "greek hoplite" 1 requires factions { greek_cities, }
recruit "greek pikemen" 0 requires factions { seleucid, macedon, }
recruit "greek hoplite elite" 0 requires factions { greek_cities, }
recruit "greek hoplite elite" 0 requires factions { macedon, }
recruit "greek royal pikemen" 0 requires factions { macedon, }
recruit "greek silver shield pikemen" 0 requires factions { seleucid, }
recruit "greek hoplite spartan" 0 requires factions { greek_cities, }
recruit "greek hoplite spartan" 0 requires factions { macedon, }
recruit "greek bastarnae" 0 requires factions { thrace, }
recruit "greek argyraspid" 0 requires factions { seleucid, }
recruit "roman city militia" 0 requires factions { roman, }
recruit "roman hastati" 0 requires factions { roman, } and not marian_reforms
recruit "roman infantry auxillia" 0 requires factions { roman, } and marian_reforms
recruit "roman princeps" 0 requires factions { roman, } and not marian_reforms
recruit "roman legionary cohort i" 0 requires factions { roman, } and marian_reforms
recruit "roman triarii" 0 requires factions { roman, } and not marian_reforms
recruit "roman legionary cohort ii" 0 requires factions { roman, } and marian_reforms
recruit "roman praetorian cohort urban i" 0 requires factions { roman, }
}
construction 7
cost 9600
settlement_min huge_city
upgrades
{
}
}
}
plugins
{
}
}

descr_model_battle

type greek_hoplite_spartan_pylos
skeleton fs_spearman, fs_swordsman
indiv_range 40
texture greek_cities, data/models_unit/textures/greek_hoplite_spartan_pylos_greece.tga
texture macedon, data/models_unit/textures/greek_hoplite_spartan_pylos_greece.tga
model_flexi_m data/models_unit/unit_greek_spartan_hoplite_pylos_400.cas, 8
model_flexi_m data/models_unit/unit_greek_spartan_hoplite_pylos_300.cas, 15
model_flexi_m data/models_unit/unit_greek_spartan_hoplite_pylos_200.cas, 30
model_flexi data/models_unit/unit_greek_spartan_hoplite_pylos_100.cas, max
model_sprite greek_cities, 60.0, data/sprites/greek_hoplite_spartan_pylos_sprite.spr
model_sprite macedon, 60.0, data/sprites/greek_hoplite_spartan_pylos_sprite.spr
model_tri 400, 0.5f, 0.5f, 0.5f


I have a feeling it has something to do with an error within the descr_model_battle file, yet I just can't put my finger on it yet.

Btw, is that all the files tht I need to edit in order to make a unit available to a faction that does not originally own it.

Thanks.