how to change the lethality of the game

[EdwardL]

where in .txt do i go to change the lethality of the game?

[Mandragore]

if you talking about "earthquake","plague" ....

take a look here:
Rome - Total War\Data\world\maps\base
there is txt file called: descr_disasters

hope that help you.

[Dol Guldur]

Probably referring to the EDU line at the end of the primary and secondary weapon lines

last but one stat on each is min delay between attacks (in 1/10th of a second), last stat is what some call "lethality" (the higher it is the more damage it seems to inflict on the opponent in the same amount of time).