What I have done so far is change the "faction [faction] trader stalin" stuff and add some fords on the Tanais river.
My results from the river were positive: the Sarmatians almost immediately captured Phanagoria and Theodosia and weakened the other two colonies but have been unable to capture them so far (I went to 260 BC).
With the AI attitudes, I changed Rome from "fortified" to "bureaucrat". It hasn't made much difference. They initially captured Paestum, but lost it and Capua, and eventually Rome. I think I'll make their southern army bigger and see what happens. I changed the Ptolemaics from "trader" to "fortified." They slowed down, but that may be because the Greeks exploded into Asia Minor, Sicily and Macedonia. I changed Bactria from "bureaucrat napoleon" to "comfortable smith". They seem to be going slower. Parthia was more successful as a result of that. I think that was all. Here are the screenshots:
http://files.filefront.com/13386547</B>
Now I intend to take down the auxilia levels of the Ptolies' Asia Minor holdings. BTW, I suggest you look into the timeline of Arsinoe. Anyway, I will also give Rome and Macedon bigger starting armies and see if they use them, then give rebel settlements in Thrace, Gaul, Northern Illyria and Germania bigger garrisons (Gaul has unified nearly all of France and northern Italy, as well as pushed into northern Illyria and Pannonia, whilst Thrace has reached the Baltic). I'm not sure how I should nerf Numidia, but I will give Carthage back its naval_invasions. I will also employ a trick to that the Libyan and Saharan deserts won't be conquered for the time being (at least, I don't think they will be).