Zerg Vs. Terran
Defending
*Keep a bunch of Zerglings burrowed in front of your base but out of the reach of your Colonies. This way if the other player brings in some Seige Tanks your Zerglings can unburrow and quickly kill the Tanks.
*Use Queens to kill Wraiths. Use their ability ensnare on a group of cloaked Wraiths, then put Parasites on them. NOTE: When a unit has a Parasite it can't cloak.
Attacking
*Try a Zergling rush. Build up a LOT of Zerglings, upgrade their attack and speed abilities. Attack in fleets of 12 and do it QUICKLY. Speed is the main part of this. You need to do this before the opponent can can gat a bunch of Firebats because if he does your Zergies will be toast.
*Make a lot of Hydralisks. They are the best unit that the Zerg race has to offer. They can attack air and ground and they can be upgraded in many categories. If you don't have any Hydras you won't win.
*Keep a scan going for expansions then if you see one wait for the Command Center to finish and prepare an army and then go infest the Command Center. If you can get Infested Marines you will have a great advantage. And the other player might be afraid to try to expand.
