Secure container Epsilon - The Official Escape from Tarkov Wiki
Secure Container Kappa Quest Boost Service | Kingboost.net
Kappa Secure Container (How to Get?) - Off-topic - Escape from Tarkov Forum
I solved the Kappa problem. Carrot Container replaces it and Kappa is a 71 unlock. Donut because it's hilarious... (Carrot because it's the carrot on a stick to keep people questing!) :
Secure container Kappa - The Official Escape from Tarkov Wiki