struct WeaponData {
    int16 model;
    byte rarity;
    byte unk1;
    int32 price;
    int16 sharpness;
    int16 damage;
    byte defense;
    byte affinity;
    byte elementalType;
    byte elementalDamage;
    byte ailmentType;
    byte ailmentDamage;
    byte slots;
    byte unk2;
    byte weaponVar;
    byte sortOrder;
    byte unk3[2];
}

• Model: Model used by the weapon, it also decides what class a weapon belongs to.
• Rarity: Rarity level of the weapon, starts at 00 meaning Rare-1.
• unk1: Unknown, always zero.
• Price: Zenny price, the value when crafting a weapon is half of this.
• Sharpness: Sharpness ID, pretty much trial and error.
• Damage: True raw damage of the weapon, check below for a chart.
• Defense: Extra defense given by the weapon.
• Affinity: The weapon's base affinity.
• ElementalType: Type of element, check below for a chart.
• ElementalDamage: Value in-game is this multiplied by 10.
• AilmentType: Like above, but only appears to accept ailments.
• AilmentDamage: Ditto.
• Slots: Up to 3, higher values break the UI and are untested.
• unk2: Unknown.
• WeaponVar: Weapon Variable value, controls Gunlance shelling and Hunting Horn notes.
• SortOrder: Lower numbers come first when sorting, unchecked.
• unk3: Unknown.

Information

• Weapons can use both damage type values at once.

Value	Gunlance	Hunting Horn
00	Normal Lv1	WBR
01	Spread Lv1	WYR
02	Long Lv1	WGR
03	Normal Lv2	WBY
04	Spread Lv2	WGY
05	Long Lv2	WGB
06	Normal Lv3	PBR
07	Spread Lv3	PYR
08	Long Lv3	PBY
09	Normal Lv4	PGY
0A	Spread Lv4	PGB
0B	Long Lv4	PGR
0C	...	WGC
0D		WYC
0E		WCB
0F		WCR
10		PGC
11		PYC
12		PCB
13		PCR
14		BlBlBl
R: Red	G: Green	B: Blue
Y: Yellow	C: Cyan	P: Pink
W: White	Bl: Black

Weapon Type	In-game damage multiplier
GS & LS	4.8
SnS & DB	1.4
Hammer & HH	5.2
Lance & GL	2.3
Gunner	1.2

Value	Elemental Type	Ailment Type
1	Fire	Poison
2	Water	Paralysis
3	Thunder	Sleep
4	Dragon
5	Ice

Credits: YukiHaze, Vuze