The Coordinated Stage is the second stage of a Flood infestation. During this stage, Flood population begins to rapidly increase and once sufficient biomass has been found, Pure Forms begin to be sent into combat. After this the next stage of Flood infection may begin. On the verge of initiating the Coordinated Stage, the Proto-Gravemind continues to be built until it reaches the status of Compound Mind or a Gravemind. It is at this point that the Flood becomes significantly more organized (communicating via thoughts and attacking strategically) and subsequently more lethal. Once they have gained sufficient technology, the Flood will then proceed into the Interstellar Stage.