Does anyone know how I would make Companion Cav available to the Greeks??

It seems that they would be quite a bit more viable with this.. plus, they should BE ABLE at least to have heavy cav.

find the export_descr_unit in your data folder of rome total war.

find the folloing lines

type greek royal cavalry
dictionary greek_royal_cavalry ; Companion Cavalry
category cavalry
class heavy
voice_type Heavy_1
soldier greek_royal_cavalry, 27, 0, 1
mount heavy horse
mount_effect elephant -8, camel -4
attributes sea_faring, hide_forest, hardy
formation 1.5, 4, 3, 6, 4, square, wedge
stat_health 1, 0
stat_pri 10, 16, no, 0, 0, melee, blade, piercing, spear, 25 ,0.75
stat_pri_attr no
stat_sec 12, 4, no, 0, 0, melee, simple, piercing, sword, 25 ,0.75
stat_sec_attr no
stat_pri_armour 11, 6, 0, metal
stat_sec_armour 0, 1, flesh
stat_heat 2
stat_ground 0, 0, -6, 0
stat_mental 10, disciplined, highly_trained
stat_charge_dist 40
stat_fire_delay 0
stat_food 60, 300
stat_cost 2, 760, 240, 80, 120, 760
ownership macedon, seleucid,

and add to the last line:
greek_cities

They already have them, macedonians and selecids. ;)

That didn't work.. do you have any other ideas on how to do it??