Where to Use Green Keycard?
You can use this card to open doors with a Green Key lock. Available regions are Satellite Dish, Harbors and Sewer Branch. You will also need the Electric Fuse to be able to open the doors.
How to Get Green Keycard in Rust?
There are two ways to get a Green Keycard. The first is to kill NPCs in Military Tunnel, Bandit Camp, Outpost and Roaming. The second is to shop for x15 Scraps.