ON the 4th mission of zerg "agent of the swarm", you start of with 1 or 2 queens no spawning pool and 1 creep.
While protecting the crysalis get your queen(s) to the south of the map (make sure you don't go to far) and you will see dropships came by.
They are not attacking but moving around from base to base. Use your queens to parasite them. Now every where they go you cans see them.
It gives you a good sight of the bases. Note: It only lasts for a limited time...!
More tricks, tips and cheats for this game are right here - Starcraft 64 cheats
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