So mundane guns can’t damage creatures immune to mundane damage. As only gunslingers (and harriers) roll on the Shoot table, anyone else shooting a mundane gun just rolls for damage, but this is reduced by DEF as mundane guns don’t bypass armour. For misfires, rolling 1 for damage forces the shooter to roll on the misfire table. Weapon damage is comparable to artefact guns, except revolvers do d6.