Go to SQL Management Studio> Connect> Database's> WarZ> Tables> Scroll down to "dbo.items_weapons> Right click> Edit top 200 rows> Scroll till you see GPriceP and thats the Zombie Dollar price. If you want it to be GC make sure the GPriceP price is 0 and put the price of GC you want it to cost in the "PriceP" slot. If im wrong im sorry FML but if im right yw <3