What about "dictator until death" for roman faction leader after marian reform, he need to have Imperator trait or higher, high inluence, high command maybe. Giving further influence, morale to troops, maybe some management, but making chance that other generals will get some bad traits.
Another thing - for Makedon. After the capture of Tylis Mak general could get something like "Avenger" trait giving him influence. Maybe also some script adding of population to Pella and Demetias to reflect return of slaves?
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