Most of the faction descriptions are found in
Rome - Total War\Data\text\campaign_descriptions.txt
you just need to change the text that isn't in the brackets. Below is a sample, the text in red is the text you can change
hope this helps.
Code:
{IMPERIAL_CAMPAIGN_JULII_TITLE}The House of Julii
{IMPERIAL_CAMPAIGN_JULII_DESCR}Rome is a place where tradition and history count for much. The legends of the city’s founding are important, and the powerful patrician families are directly descended from the first followers of Romulus. These heroic times demanded harsh, decisive action, and this is a tradition that the often-conservative Romans have maintained to this day. The Romans, including the Julii family, are people for whom politics and war are all or nothing affairs.\n\n
Bookmarks