Once you have produced a pile of drones and two new hatcheries build some sunken and spore colonies. It is also a good idea to have 12 Hydralisks to defend against the protoss attacks. Upgrade everything that you can especially get the Hydralisks upgraded and insure that you can get Gaurdians. Get a group of twelve Gaurdians twelve Hydralisks twelve Mutilisks twelve Hydralisks and if you want twelve zerglings with upgraded speed. Move up the map to the temple destroying any photon cannons offensive protoss units. (Use your gaurdians to destroy the cannons.) At the temple a Carrier awaits you. Destroy it first using any gaurdians left to destroy some of the ground forces. When the crystal drone appears put it in an overlord and transport it to the beacon by the rubble.