Thanks for the clarification.
if a weapon has a fixed strength heroes use the fixed strength without modifications
if a weapon has a weapon skill this weapon skill takes precedence
last question, skills that allow to roll more dice are always added to weapons ?
For example a hero with Refined Swordmanship skill and an Iron Axe equipped how many dice will roll in zone1 ? 3 or 4 ?
I Suppose 4
Yes, 4 dice.
But remember that the number of dice linked to the weapon must follow the weapon skill.