I've discovered a few of these unknowns from the raw data.

unknown12 = range_bonus
unknown13 = damage_bonus
unknown15 = hit_bonus
unknown16 = damage_type


Note: In all our items data so far, unknown14 is always 0, and I am not sure what to map that to yet.

Bion, ol buddy. Now that you're digging into Item structs, can you verify that my findings above are correct? We can get those fields renamed if so and get that data ready for the live DB.

ok will check it out ... I also uploaded the code and sql to support the item house change i made