In this tutorial will show you how to unlock the wrench melee weapon from Zombies Gorod Krovi . You can unlock melee weapons by completing various rounds under 5 minutes. So if you complete more round in less than 5 minutes you will be able to unlock the Melee weapons such as a wrench . So to get the wrench you will need to complete as many rounds fast under the 5 minute mark and once you unlock it you will get a message saying to go to operations bunker and the wrench is on the wall. We reached to round 5 under 5 minutes and we were able to unlock the wrench and is such an OP weapons because with one hit you can knock out zombies easily. This was implemented first in the black market and now it has been implemented with zombies wich makes it a great move.