Hola Genghis. Aqui te dejo el link del foro de EB donde puedes encontrar esa información:
http://forums.totalwar.org/vb/showthread.php?t=84854
De todas formas pego aquí lo que pone para que se lea más fácilmente:
Romans: 3
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Polybian
The Polybian Reforms happen due to a change in equiptment and tactics that were adopted or adapted due to wars with Carthage and Celts.
-At least year 242
-Hold 2 of these cities (Segesta, Mediolanum, Patavium, Bononia)
-Hold 2 of these cities (Lilibeo, Messana, Syracuse)
OR
-Wait until 210BC
(You get the new units only after upgrading your MICs.)
***
Marian
The Marian Reforms mark a shift between citizen soldiers and professional soldiers from any class who are supplied their equiptment by the state. These reforms will occur when you have a large empire with a lack of landed citizens to fill the growing need for soldiers. If at this point there is a man willing to make the changes to the military system, the reforms will take place.
-At least the year 172BC
-Have more than 6 Latifundia built in Italy
-Hold at least 45 settlements
-Fight more than 250 battles
-Have a character that is:
Sharp/Charismatic/Vigorous
Popularis
Consul or Ex-Consul
Has Influence > 2
Has Command > 2
OR
-Conquer 90 settlements.
***
Augustan
If a man with the drive arises in the Republic, willing to overthrow the Senate, give him the chance and these reforms will take place. (These reforms are not inevitable and are based on whether such a character arrises.)
-At least year 125BC
-Hold 90 settlements
-Have at least 45 type2 settlements
-Fight 400 battles
-Have a general that is:
Sharp/Charismatic/Vigorous
At least Skilled Bureaucrat
At least Arrogans
At least Expert Recruiter
Can't be Selfless
(If these conditions are met, the general will receive a trait telling he wants to seize power. Make him the Faction Heir and as soon as he becomes the leader the reforms will happen.)
Saludos.