Suggestion concerning the Romans

[Megas Methuselah]

http://en.wikipedia.org/wiki/Jugurtha
http://en.wikipedia.org/wiki/Mithridates_VI_of_Pontus
http://en.wikipedia.org/wiki/Battle_of_Vercellae
http://en.wikipedia.org/wiki/Battle_of_Aquae_Sextiae
http://en.wikipedia.org/wiki/Gallic_Wars

Nah bro, sorry for being unclear, but I meant these:

25-30 provinces
Must have a treasury of one million sesterces
To balance it perhaps The Marian soldiers should only have a discipline advantage over earlier Romans and be very expensive