If you are zerg. First fill up ur minerals so that atleast one guy goes to each then you build 16 hatcheries. If u are goin ground then you build up ur ground buildings. If u are goin air then you build a spawning pool (when done upgrade 4 hatchery to a lire then when done if u have enough money upgrade ur overlords all 3 at once) and 1-2 creep colonies so that u expand ur creep so that u can build 3 spires and a queens nest (when done make a hive from ur ) then make one of ur spires to a greater spire when the Hive is done upgrading. Then max out on overlords (200units). Next max out on flying units and do there upgrades. Then when they have 3s either attack or make them into guardains and devours.

CreepColony's Opinion: 16 hatcheries might be too much, especially if your ally/allies are not zerg, since they won't be able to build on creep. And what does "3s" mean?