Starcraft 2 Extractor Tactics - Version 1.0 Learn about how to make the most out of the humble Zerg Extractor building in StarCraft 2 in this informative eBook. You will also learn about various strategies for using this basic but important structure such as the relatively common Extractor Trick. The information in the eBook is separated into different sections.All of the sections in the eBook are listed as follows:-Introduction-Starcraft 2 Extractor Tactics-Recommended ResourcesThe Introduction section introduces the topic of the eBook which is all about the Starcraft 2 Zerg structure called the Extractor. The Starcraft 2 Extractor Tactics section provides more detailed information about the topic of the eBook and provides additional information about the economic value of this building.