I read somewhere that the Punic Wars helped the style of farming system mentioned in my other post. Normally farmers would go to war and return after a few weeks - at most a couple of months. However the Punic Wars lasted several years. At the end of them most farmers' farms had run fallow and had collapsed due to lack of maintanence. Due to this rich men could now buy the land of the peasants and as the number of slaves had increased, due to Romans grabbing land of other nations, the land-owners could use slaves (which did not have to be paid) instead of free-men\citizens (which did).

So as I have also said in my above post mabye EB should only enable level 5 farms to be built after a certain ammount of places have been enslaved and then the farms trigger the Marius reforms. Also if they don't happen in Marius' time (that is when he was alive) they should be called. The "Proffesional Roman Reforms" mabye because Marius would not have been there to change the military style.