Calling Card | How to Get |
---|---|
Clear 5 Strongholds in the DMZ. | |
Clear 10 Strongholds in the DMZ. | |
Clear 25 Strongholds in the DMZ. | |
Clear 50 Strongholds in the DMZ. | |
Clear 100 Strongholds in the DMZ. | |
Clear 250 Strongholds in the DMZ. | |
Complete all Stronghold Challenges. |