Breach - Breach weapons ignore one point of armor for every rating of Breach (meaning they also ignore 10 points of soak for every rating of Breach).

Burn - Weapons with Burn inflict damage over time. If the attack is successful, the target continues to suffer the weapon's base damage each round for a number of rounds equal to the weapon's Burn rating. Damage is applied at the start of each of the target's turns.

Sunder - When activated, the attacker chooses one item openly wielded by the target (such as a weapon, shield, or item on a belt). That item is damaged one step: to minor if undamaged, from minor to moderate, or from moderate to major. If a weapon already suffering major damage is the target of a successful Sunder, it is destroyed. Sunder requires O to activate. If activated multiple times in the same attack, each activation can be applied against the same weapon, potentially taking a weapon from undamaged to destroyed in a single attack.

Vicious - When this weapon scores a Critical Injury or Hit, the character adds ten times the Vicious rating to the Critical roll. With Vicious 3, for example, the victim adds + 30 to his Critical Hit result.