Each incursion in which you ship in Rainbow Six Extraction will give you three objectives to complete, one in each subz1. One could be a stop goal that requires that it collects and obtain a moss injector and take it to the nutrient node. This will prevent the Subarea nests from appearing again by obstructing the root network that the nests use. The problem is to try to find Foam injector in Rainbow Six Extraction , because it is not always clear where you are supposed to find it. The good news is that when you know where to get it, you will know where to find it every time because it is always in the same place regardless of what map or threat level you are playing. Get the injector for the STOP objectives in Rainbow Six Extraction