4 points of conflict

breach: Weapons with Breach burn through the toughest armor;
they are often heavy weapons or starship weapons.
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).

cumbersome: A Cumbersome weapon is large, unwieldy, awkward,
or heavy. To wield a Cumbersome weapon properly,
the character needs a Brawn characteristic equal to
or greater than the weapon’s Cumbersome rating.
For each point of Brawn by which the character is deficient, he must increase the difficulty of all checks
made while using the weapon by one.

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.
Defensive weapons are particulary good at fending off incoming melee attacsk. A character wielding a weapon with the defensive qulaity increases his melee defense by the weapon's defensive rating.
Superior items are a sterling example of its kind. generates automatc laurels on all checks realated to its use and its base damage is increased by one.