Talk:Chemical Weapons Lab/@comment-65.87.54.170-20131014195833/@comment-5007614-20131014202640

I don't have the specifics, but it unlocks late into the story, after you oust Gantas and start battling Rebels in the Heartland, when they are employing Chem Tanks and Troops against you, and Floyd and Morgan start asking you to research chemical weapons of your own.