Start as Rome - get through the Socii War (or, perhaps better, use a previous save) - make Capua your capital - use only Allied and then Generic cohorts........a Capuan campaign with pseudo-Roman influences.
"RTW/RS VH campaign difficulty is bugged out (CA bug that never got fixed) and thus easier than Hard so play on that instead" - apple
RSII 2.5/2.6 Tester and pesky irritant to the Team. Mucho praise for long suffering dvk'.