Trait: Heavy⚙️
Heavy weapons are weapons that have a weight to them, or apply the increased strength of the user to gracious effect. A heavy weapon's size and bulk make them too awkward for creatures without strength in mind.
Mechanic⚙️: The weapon's Bulk factor is twice as much as it's listed stat. If the weapon is a Melee weapon, The Strength modifier is added to the weapon twice. Only the first instance stacks with the Two-Hand⚙️ trait (e.g. a Kobold with a +4 strength deals +8 with a Heavy Weapon, and a +12 if wielded with two hands).
There is no other penalty for Smaller creatures weilding Heavy Weapons, aside from Bulk