Mission 4: The Liberation of Korhal

Conditions for winning

• Destroy all enemy structures

Conditions for losing

• All your structures are destroyed

Getting more Sunken Colonies and starting to mine should be the first things you do, as Terran attacks combined with limited Zerg units come regularly.

When you have a good amount of Hydralisks and Zerglings, move them north, establish a base there, and then west, and establish another base there. By now you are ready to climb the tech tree to Guardians, and take out enemy defenses. Get 12 Guardians and a swarm of Scourges, preferable 24.

Send in the Guardians slowly and get your Scourges into action if any enemy Valkyries come into play. Remember to still wach out for enemy Nukes by placing Overlords and Hydralisks at stragetic base perimeter spots.

You should be able to wipe out at least a quarter of their base with your large Guardian/Scourge attack force, and when you do, you'll be ready for the final big attack.

Upgrade Melee Attack, Carapace, and both of the Zergling upgrades for the Spawning Pool. Now, slowly collect Zerglings until you have about 200 to 300. Send them all in a continuous swarm, and you can kill off their entier base, and then simply send in a few Scourge or Hydralisks to clean out the few Battlecruisers.