Skills, weapons, and strategy are undoubtedly essential in Gray Zone Warfare, but you also need to be able to retreat in time to save all your accumulated goods. Of course, you can use your legs, hiding behind every bush and slowly making your way to the base, but it is much more effective to use a Helicopter, the call of which does not even require money. Think of the Helicopter in Gray Zone Warfare as a quick-response taxi service because the wait is typically only a minute. First, you need to know how to call the Helicopter in Gray Zone Warfare to extract.