Just changed the default time to more seconds in the PlotToolTip.lua. XML changes didn't appear to affect anything.
gelodgreat: in the units.xml I don't see any particular era related sequences or numbers that would impact the clear combat advantage later era units are getting in the game. What lines are you talking about?
notque: bonus roll? where is that listed in the files? I've missed it. And what is the scaling modifier? Wow, how'd you dig all that up? Fill me in please?