Mission 4: Agent of the Swarm

Conditions for winning

• Protect the Chrysalis until it's ready to hatch
• Infest of destroy Raynor's Command Center
• Kerrigan must survive

Conditions for losing

• All your buildings are destroyed
• The Chrysalis dies before hatching
• Kerrigan dies

After you start, immediately go north to find more minerals. Mine until you can get enough for additional Hatcheries, and place Sunken Colonies and Spore Colonies all around your base.

Now research Overlord Ventral Sacs and Pneumatized Carapace, and create 12 Mutalisks. If you can do all this before Kerrigan arrives, then you're safe. Even if you don't have time for Mutalisks, creating a small group of Hydralisks will also do fine.

After Kerrigan emerges from the Chrysalis, get your mutalisks and Overlords with Drones in them to the center-east island, where there are more minerals. Defend that area with Sunken and Spore Colonies, and build more Overlords, with Zerglings and Hydralisks.

Once you have about 6 loaded Overlords and 12 to 24 Mutalisks, move north of your initial base, and then sweep east. Send in your Mutalisks to clean out the few turrets on the western coast of the main Terran base, and follow up with Overlords dropping your Hydralisks and Zerglings. Sweep east and destroy Raynor's Command Center.