Quote Originally Posted by Obelics
Anyway, isn't what you are calling "lethality" a factor that is better when is lower? (cause it seems to be the "retard" between attacks)

so numidian cavalry who has 0.04 lethality and 13 attack should do better than thessalian cavalry who has 11 and 0.13? (secondary weapon, the more often used...)
Not quite. Lethality is the chance that a hit translates into a kill. The lower lethality is, the more knock-downs you'll get, while higher lethality means less knock-downs and more kills.

Not sure about mass, but IIRC it determines which unit will be pushed back during combat. I am told that, all other things being equal, the unit that is pushed back will do slightly worse in combat, but I don't think anybody ever tested this.