In Gray Zone Warfare, there are tons of things to collect and use. However, not every iteam is explained. The keys are a good example. To learn where to use these keys in Gray Zone Warfare, you should read this guide.Gray Zone Warfare: How to find keysAs I’m playing many players have come up to me asking me if I’ve had certain keys which left me puzzled. However, as I got deeper into the game, I realized that keys are quite important. Once you have one, you may waste time trying to open random doors. First, it seems like most or all keys found in Gray Zone Warfare can be earned by looting dead NPCs. If you’re playing on the PVP server, you might be able to loot one from a fallen player. Second, to find keys, try looking in areas where you have to do tasks. For example, if you’re doing the Rat Zone quest, search the area, and a key should be nearby.Image: Ma…