Each weapon class has one or more unique tactics associated with it. A weapon class is a type of weapon: for example, Blunt includes all weapons that are bludgeoning and meant to crush opponents, whereas Firearms include guns that shoot projectiles.
If you have the weapon skill corresponding to a weapon class, you can use its tactic. If the tactic requires you to forgo dealing damage to use it, you must declare that you’re using the tactic before rolling to attack.
Other tactics automatically take effect when the weapon deals damage.