dlcWeaponIndex takes a number from 0 - GET_NUM_DLC_WEAPONS() - 1.
struct DlcWeaponData
{
int emptyCheck; //use DLC1::_IS_DLC_DATA_EMPTY on this
int padding1;
int weaponHash;
int padding2;
int unk;
int padding3;
int weaponCost;
int padding4;
int ammoCost;
int padding5;
int ammoType;
int padding6;
int defaultClipSize;
int padding7;
char nameLabel[64];
char descLabel[64];
char desc2Label[64]; // usually "the" + name
char upperCaseNameLabel[64];
};