" require the resource Unstable ISO-8 to access its mission events, including battles and deploys. You can earn Unstable ISO-8 through battle or deploys, gifts from friends, or buy it from the store to help you complete the challenge. However, once the mission is expired that flavor of Unstable ISO-8 goes away with it, so try to use it all up!" — Special Operations Briefing UISO are consumed on research. Spec Ops 2 to 16, Blueprints specific to each Special Operation usually requires 80, 100, and 120 Unstable Iso-8 for the research. Spec Ops 17 to 33 requires 40 and 60 Unstable Iso-8.